ISE Intermediate Algebra
ISE Intermediate Algebra
6th Edition
ISBN: 9781264418756
Author: Miller, Julie, O'Neill, Molly, Hyde, Nancy
Publisher: McGraw Hill
bartleby

Videos

Question
Book Icon
Chapter 5.4, Problem 1PRE
To determine

Simplifying the expression using identified operation (Addition, Subtraction, Multiplication, Division)

Blurred answer

Chapter 5 Solutions

ISE Intermediate Algebra

Ch. 5.1 - Prob. 11PECh. 5.1 - Prob. 12PECh. 5.1 - Prob. 13PECh. 5.1 - Prob. 14PECh. 5.1 - For Exercise 7-20 Write the domain in set-builder...Ch. 5.1 - Prob. 16PECh. 5.1 - For Exercise 7-20 Write the domain in set-builder...Ch. 5.1 - Prob. 18PECh. 5.1 - Prob. 19PECh. 5.1 - For Exercise 7-20 Write the domain in set-builder...Ch. 5.1 - For Exercises 21-24, write the domain of each...Ch. 5.1 - For Exercises 21-24, write the domain of each...Ch. 5.1 - For Exercises 21-24, write the domain of each...Ch. 5.1 - For Exercises 21-24, write the domain of each...Ch. 5.1 - For Exercise 25-26, simplify the expression if...Ch. 5.1 - Prob. 26PECh. 5.1 - Prob. 27PECh. 5.1 - Prob. 28PECh. 5.1 - Prob. 29PECh. 5.1 - For Exercise 27-30, Factor the numerator and...Ch. 5.1 - For Exercises 31-52, simplify the rational...Ch. 5.1 - Prob. 32PECh. 5.1 - Prob. 33PECh. 5.1 - Prob. 34PECh. 5.1 - For Exercises 31-52, simplify the rational...Ch. 5.1 - Prob. 36PECh. 5.1 - Prob. 37PECh. 5.1 - Prob. 38PECh. 5.1 - Prob. 39PECh. 5.1 - For Exercises 31-52, simplify the rational...Ch. 5.1 - Prob. 41PECh. 5.1 - Prob. 42PECh. 5.1 - Prob. 43PECh. 5.1 - Prob. 44PECh. 5.1 - For Exercises 31-52, simplify the rational...Ch. 5.1 - Prob. 46PECh. 5.1 - Prob. 47PECh. 5.1 - Prob. 48PECh. 5.1 - Prob. 49PECh. 5.1 - For Exercises 31-52, simplify the rational...Ch. 5.1 - Prob. 51PECh. 5.1 - Prob. 52PECh. 5.1 - Prob. 53PECh. 5.1 - Prob. 54PECh. 5.1 - For Exercise 53-64, simplify the rational...Ch. 5.1 - Prob. 56PECh. 5.1 - Prob. 57PECh. 5.1 - Prob. 58PECh. 5.1 - Prob. 59PECh. 5.1 - For Exercise 53-64, simplify the rational...Ch. 5.1 - Prob. 61PECh. 5.1 - Prob. 62PECh. 5.1 - For Exercise 53-64, simplify the rational...Ch. 5.1 - Prob. 64PECh. 5.1 - Prob. 65PECh. 5.1 - Prob. 66PECh. 5.1 - Prob. 67PECh. 5.1 - Prob. 68PECh. 5.1 - Prob. 69PECh. 5.1 - Prob. 70PECh. 5.1 - Prob. 71PECh. 5.1 - Prob. 72PECh. 5.1 - Prob. 73PECh. 5.1 - Prob. 74PECh. 5.1 - Prob. 75PECh. 5.1 - Prob. 76PECh. 5.1 - Prob. 77PECh. 5.1 - Prob. 78PECh. 5.1 - Prob. 79PECh. 5.1 - Prob. 80PECh. 5.1 - Prob. 81PECh. 5.1 - Prob. 82PECh. 5.1 - Prob. 83PECh. 5.1 - Prob. 84PECh. 5.1 - Write a rational expression whose domain is ,02,...Ch. 5.1 - Prob. 86PECh. 5.1 - Prob. 87PECh. 5.1 - Prob. 88PECh. 5.2 - Prob. 22PECh. 5.2 - Prob. 23PECh. 5.2 - For Exercises 22-35, divide the rational...Ch. 5.2 - Prob. 25PECh. 5.2 - Prob. 26PECh. 5.2 - For Exercises 22-35, divide the Rational...Ch. 5.2 - Prob. 28PECh. 5.2 - Prob. 29PECh. 5.2 - For Exercises 22-35, divide the Rational...Ch. 5.2 - Prob. 31PECh. 5.2 - Prob. 32PECh. 5.2 - For Exercises 22-35, divide the Rational...Ch. 5.2 - Prob. 34PECh. 5.2 - Prob. 35PECh. 5.2 - For Exercises 36-55, perform the indicated...Ch. 5.2 - Prob. 37PECh. 5.2 - Prob. 38PECh. 5.2 - Prob. 39PECh. 5.2 - Prob. 40PECh. 5.2 - Prob. 41PECh. 5.2 - Prob. 42PECh. 5.2 - Prob. 43PECh. 5.2 - Prob. 44PECh. 5.2 - Prob. 45PECh. 5.2 - Prob. 46PECh. 5.2 - Prob. 47PECh. 5.2 - Prob. 48PECh. 5.2 - Prob. 49PECh. 5.2 - Prob. 50PECh. 5.2 - Prob. 51PECh. 5.2 - Prob. 52PECh. 5.2 - Prob. 53PECh. 5.2 - Prob. 54PECh. 5.2 - Prob. 55PECh. 5.2 - Prob. 56PECh. 5.2 - Prob. 57PECh. 5.2 - Prob. 58PECh. 5.2 - Prob. 59PECh. 5.3 - a. Given polynomials p,q, and r such that qpq+rq=...Ch. 5.3 - Prob. 7PECh. 5.3 - Prob. 8PECh. 5.3 - Prob. 9PECh. 5.3 - Prob. 10PECh. 5.3 - Prob. 11PECh. 5.3 - Prob. 12PECh. 5.3 - Prob. 13PECh. 5.3 - Prob. 14PECh. 5.3 - Prob. 15PECh. 5.3 - For Exercises, 15-26, find the least common...Ch. 5.3 - Prob. 17PECh. 5.3 - Prob. 18PECh. 5.3 - Prob. 19PECh. 5.3 - Prob. 20PECh. 5.3 - Prob. 21PECh. 5.3 - Prob. 22PECh. 5.3 - Prob. 23PECh. 5.3 - Prob. 24PECh. 5.3 - Prob. 25PECh. 5.3 - Prob. 26PECh. 5.3 - Prob. 27PECh. 5.3 - Prob. 28PECh. 5.3 - Prob. 29PECh. 5.3 - Prob. 30PECh. 5.3 - Prob. 31PECh. 5.3 - Prob. 32PECh. 5.3 - Prob. 33PECh. 5.3 - Prob. 34PECh. 5.3 - Prob. 35PECh. 5.3 - Prob. 36PECh. 5.3 - Prob. 37PECh. 5.3 - Prob. 38PECh. 5.3 - Prob. 39PECh. 5.3 - Prob. 40PECh. 5.3 - Prob. 41PECh. 5.3 - Prob. 42PECh. 5.3 - Prob. 43PECh. 5.3 - Prob. 44PECh. 5.3 - Prob. 45PECh. 5.3 - Prob. 46PECh. 5.3 - Prob. 47PECh. 5.3 - Prob. 48PECh. 5.3 - Prob. 49PECh. 5.3 - Prob. 50PECh. 5.3 - Prob. 51PECh. 5.3 - Prob. 52PECh. 5.3 - Prob. 53PECh. 5.3 - Prob. 54PECh. 5.3 - Prob. 55PECh. 5.3 - For Exercises 33-58, add or subtract as indicated....Ch. 5.3 - Prob. 57PECh. 5.3 - Prob. 58PECh. 5.3 - Prob. 59PECh. 5.3 - Prob. 60PECh. 5.3 - Prob. 61PECh. 5.3 - Prob. 62PECh. 5.3 - Prob. 63PECh. 5.3 - Prob. 64PECh. 5.3 - Prob. 65PECh. 5.3 - Prob. 66PECh. 5.3 - For Exercise 59-80, simplify. 67. x1.3x21+22x2Ch. 5.3 - Prob. 68PECh. 5.3 - Prob. 69PECh. 5.3 - Prob. 70PECh. 5.3 - Prob. 71PECh. 5.3 - Prob. 72PECh. 5.3 - Prob. 73PECh. 5.3 - Prob. 74PECh. 5.3 - Prob. 75PECh. 5.3 - Prob. 76PECh. 5.3 - Prob. 77PECh. 5.3 - Prob. 78PECh. 5.3 - Prob. 79PECh. 5.3 - Prob. 80PECh. 5.3 - Prob. 81PECh. 5.3 - Prob. 82PECh. 5.3 - Prob. 83PECh. 5.3 - Prob. 84PECh. 5.4 - A _____________ fraction is an expression...Ch. 5.4 - Prob. 3PECh. 5.4 - Prob. 4PECh. 5.4 - Prob. 5PECh. 5.4 - Prob. 6PECh. 5.4 - Prob. 7PECh. 5.4 - Prob. 8PECh. 5.4 - Prob. 9PECh. 5.4 - Prob. 10PECh. 5.4 - Prob. 11PECh. 5.4 - Prob. 12PECh. 5.4 - Prob. 13PECh. 5.4 - Prob. 14PECh. 5.4 - Prob. 15PECh. 5.4 - Prob. 16PECh. 5.4 - Prob. 17PECh. 5.4 - Prob. 18PECh. 5.4 - Prob. 19PECh. 5.4 - Prob. 20PECh. 5.4 - Prob. 21PECh. 5.4 - Prob. 22PECh. 5.4 - Prob. 23PECh. 5.4 - Prob. 24PECh. 5.4 - Prob. 25PECh. 5.4 - Prob. 26PECh. 5.4 - Prob. 27PECh. 5.4 - Prob. 28PECh. 5.4 - Prob. 29PECh. 5.4 - Prob. 30PECh. 5.4 - Prob. 31PECh. 5.4 - Prob. 32PECh. 5.4 - Prob. 33PECh. 5.4 - Prob. 34PECh. 5.4 - Prob. 35PECh. 5.4 - Prob. 36PECh. 5.4 - Prob. 37PECh. 5.4 - Prob. 38PECh. 5.4 - Prob. 39PECh. 5.4 - Prob. 40PECh. 5.4 - Prob. 41PECh. 5.4 - Prob. 42PECh. 5.4 - Prob. 43PECh. 5.4 - Prob. 44PECh. 5.4 - Prob. 45PECh. 5.4 - Prob. 46PECh. 5.4 - Prob. 47PECh. 5.4 - Prob. 48PECh. 5.4 - Prob. 49PECh. 5.4 - Prob. 50PECh. 5.4 - Prob. 51PECh. 5.4 - Prob. 1PRECh. 5.4 - Prob. 2PRECh. 5.4 - Prob. 3PRECh. 5.4 - Prob. 4PRECh. 5.4 - Prob. 5PRECh. 5.4 - Prob. 6PRECh. 5.4 - Prob. 7PRECh. 5.4 - Prob. 8PRECh. 5.4 - Prob. 9PRECh. 5.4 - Prob. 10PRECh. 5.4 - Prob. 11PRECh. 5.4 - Prob. 12PRECh. 5.4 - Prob. 13PRECh. 5.4 - Prob. 14PRECh. 5.4 - Prob. 15PRECh. 5.4 - Prob. 16PRECh. 5.4 - Prob. 17PRECh. 5.4 - Prob. 18PRECh. 5.4 - Prob. 19PRECh. 5.4 - Prob. 20PRECh. 5.4 - Prob. 21PRECh. 5.4 - Prob. 22PRECh. 5.4 - Prob. 23PRECh. 5.4 - Prob. 24PRECh. 5.5 - a. The equation 5x+2+12=45 is an example of a...Ch. 5.5 - Prob. 10PECh. 5.5 - Prob. 11PECh. 5.5 - Prob. 12PECh. 5.5 - Prob. 13PECh. 5.5 - Prob. 14PECh. 5.5 - Prob. 15PECh. 5.5 - Prob. 16PECh. 5.5 - Prob. 17PECh. 5.5 - Prob. 18PECh. 5.5 - Prob. 19PECh. 5.5 - Prob. 20PECh. 5.5 - Prob. 21PECh. 5.5 - Prob. 22PECh. 5.5 - Prob. 23PECh. 5.5 - Prob. 24PECh. 5.5 - Prob. 25PECh. 5.5 - Prob. 26PECh. 5.5 - Prob. 27PECh. 5.5 - Prob. 28PECh. 5.5 - Prob. 29PECh. 5.5 - Prob. 30PECh. 5.5 - Prob. 31PECh. 5.5 - Prob. 32PECh. 5.5 - Prob. 33PECh. 5.5 - Prob. 34PECh. 5.5 - Prob. 35PECh. 5.5 - Prob. 36PECh. 5.5 - Prob. 37PECh. 5.5 - Prob. 38PECh. 5.5 - Prob. 39PECh. 5.5 - Prob. 40PECh. 5.5 - Prob. 41PECh. 5.5 - Prob. 42PECh. 5.5 - Prob. 43PECh. 5.5 - Prob. 44PECh. 5.5 - Prob. 45PECh. 5.5 - Prob. 46PECh. 5.5 - Prob. 47PECh. 5.5 - Prob. 48PECh. 5.5 - Prob. 49PECh. 5.5 - Prob. 50PECh. 5.5 - Prob. 51PECh. 5.5 - Prob. 52PECh. 5.5 - Prob. 53PECh. 5.5 - Prob. 54PECh. 5.5 - Prob. 55PECh. 5.5 - Prob. 56PECh. 5.5 - Prob. 57PECh. 5.5 - Prob. 58PECh. 5.5 - Prob. 59PECh. 5.5 - Prob. 60PECh. 5.5 - Prob. 61PECh. 5.5 - Prob. 62PECh. 5.5 - For Exercise 61-74, solve the equation. 63....Ch. 5.5 - Prob. 64PECh. 5.5 - Prob. 65PECh. 5.5 - Prob. 66PECh. 5.5 - Prob. 67PECh. 5.5 - Prob. 68PECh. 5.5 - Prob. 69PECh. 5.5 - Prob. 70PECh. 5.5 - Prob. 71PECh. 5.5 - Prob. 72PECh. 5.5 - Prob. 73PECh. 5.5 - Prob. 74PECh. 5.5 - Prob. 75PECh. 5.5 - Prob. 76PECh. 5.5 - Prob. 77PECh. 5.5 - Prob. 78PECh. 5.5 - Prob. 1PRECh. 5.5 - Prob. 2PRECh. 5.5 - Prob. 3PRECh. 5.5 - Prob. 4PRECh. 5.5 - Prob. 5PRECh. 5.5 - Prob. 6PRECh. 5.5 - Prob. 7PRECh. 5.5 - Prob. 8PRECh. 5.5 - Prob. 9PRECh. 5.5 - Prob. 10PRECh. 5.5 - Prob. 11PRECh. 5.5 - Prob. 12PRECh. 5.5 - Prob. 13PRECh. 5.5 - Prob. 14PRECh. 5.5 - Prob. 15PRECh. 5.5 - Prob. 16PRECh. 5.5 - Prob. 17PRECh. 5.5 - Prob. 18PRECh. 5.5 - Prob. 19PRECh. 5.5 - Prob. 20PRECh. 5.6 - Prob. 3PECh. 5.6 - Prob. 4PECh. 5.6 - Prob. 5PECh. 5.6 - Prob. 6PECh. 5.6 - Prob. 7PECh. 5.6 - Prob. 8PECh. 5.6 - Prob. 9PECh. 5.6 - Prob. 10PECh. 5.6 - Prob. 11PECh. 5.6 - Prob. 12PECh. 5.6 - Prob. 13PECh. 5.6 - Prob. 14PECh. 5.6 - Prob. 15PECh. 5.6 - Prob. 16PECh. 5.6 - Prob. 17PECh. 5.6 - Prob. 18PECh. 5.6 - Prob. 19PECh. 5.6 - Prob. 20PECh. 5.6 - Prob. 21PECh. 5.6 - Prob. 22PECh. 5.6 - A fisherman in the North Atlantic catches eight...Ch. 5.6 - Prob. 24PECh. 5.6 - Prob. 25PECh. 5.6 - On a map, the distance from Sacramento,...Ch. 5.6 - Yellowstone National Park in Wyoming has the...Ch. 5.6 - Laws have been instituted in Florida to help save...Ch. 5.6 - Prob. 29PECh. 5.6 - Prob. 30PECh. 5.6 - Prob. 31PECh. 5.6 - A chemist mixes water and alcohol in a 7 to 8...Ch. 5.6 - Prob. 33PECh. 5.6 - Prob. 34PECh. 5.6 - Prob. 35PECh. 5.6 - Prob. 36PECh. 5.6 - Prob. 37PECh. 5.6 - Prob. 38PECh. 5.6 - Prob. 39PECh. 5.6 - Prob. 40PECh. 5.6 - Prob. 41PECh. 5.6 - Prob. 42PECh. 5.6 - A motorist travels 80 mi while driving in a bad...Ch. 5.6 - walks 2 km/hr slower than her older sister...Ch. 5.6 - Two out-of-town firefighter crews have been called...Ch. 5.6 - can run 3 mi to the beach in the same amount of...Ch. 5.6 - A bicyclist rides 30 mi against a wind and returns...Ch. 5.6 - A boat travels 60 mi to an island and 60 mi back...Ch. 5.6 - Celeste walked 140 ft on a moving walkway at...Ch. 5.6 - Julio rides his bike 6 mi and gets a flat tire....Ch. 5.6 - Beatrice participates in professional triathlons....Ch. 5.6 - A bus leaves a terminal at 9:00. A car leaves 1 hr...Ch. 5.6 - Prob. 53PECh. 5.6 - Prob. 54PECh. 5.6 - Prob. 55PECh. 5.6 - Ted can change an advertisement on a billboard in...Ch. 5.6 - A swimming pool takes 30 hr to fill using an old...Ch. 5.6 - One carpenter can complete a kitchen in 8 days....Ch. 5.6 - Guns works twice as fast as Sid. Together they can...Ch. 5.6 - It takes a child 3 times longer to vacuum a house...Ch. 5.7 - Prob. 1PECh. 5.7 - Prob. 2PECh. 5.7 - Prob. 3PECh. 5.7 - Prob. 4PECh. 5.7 - Prob. 5PECh. 5.7 - Prob. 6PECh. 5.7 - Prob. 7PECh. 5.7 - Prob. 8PECh. 5.7 - Prob. 9PECh. 5.7 - Prob. 10PECh. 5.7 - Prob. 11PECh. 5.7 - Prob. 12PECh. 5.7 - Prob. 13PECh. 5.7 - Prob. 14PECh. 5.7 - Prob. 15PECh. 5.7 - Prob. 16PECh. 5.7 - Prob. 17PECh. 5.7 - Prob. 18PECh. 5.7 - Prob. 19PECh. 5.7 - Prob. 20PECh. 5.7 - Prob. 21PECh. 5.7 - Prob. 22PECh. 5.7 - Prob. 23PECh. 5.7 - Prob. 24PECh. 5.7 - Prob. 25PECh. 5.7 - Prob. 26PECh. 5.7 - Prob. 27PECh. 5.7 - Prob. 28PECh. 5.7 - Prob. 29PECh. 5.7 - Prob. 30PECh. 5.7 - Prob. 31PECh. 5.7 - Prob. 32PECh. 5.7 - Prob. 33PECh. 5.7 - Prob. 34PECh. 5 - Prob. 1RECh. 5 - Prob. 2RECh. 5 - Prob. 3RECh. 5 - Prob. 4RECh. 5 - Prob. 5RECh. 5 - Prob. 6RECh. 5 - Prob. 7RECh. 5 - Prob. 8RECh. 5 - Prob. 9RECh. 5 - Prob. 10RECh. 5 - Prob. 11RECh. 5 - Prob. 12RECh. 5 - Prob. 13RECh. 5 - Prob. 14RECh. 5 - Prob. 15RECh. 5 - Prob. 16RECh. 5 - Prob. 17RECh. 5 - Prob. 18RECh. 5 - Prob. 19RECh. 5 - Prob. 20RECh. 5 - Prob. 21RECh. 5 - Prob. 22RECh. 5 - Prob. 23RECh. 5 - Prob. 24RECh. 5 - Prob. 25RECh. 5 - Prob. 26RECh. 5 - Prob. 27RECh. 5 - Prob. 28RECh. 5 - Prob. 29RECh. 5 - Prob. 30RECh. 5 - Prob. 31RECh. 5 - Prob. 32RECh. 5 - Prob. 33RECh. 5 - Prob. 34RECh. 5 - Prob. 35RECh. 5 - For Exercises 27-38, add or subtract as indicated....Ch. 5 - Prob. 37RECh. 5 - Prob. 38RECh. 5 - Prob. 39RECh. 5 - Prob. 40RECh. 5 - Prob. 41RECh. 5 - Prob. 42RECh. 5 - Prob. 43RECh. 5 - Prob. 44RECh. 5 - Prob. 45RECh. 5 - Prob. 46RECh. 5 - Prob. 47RECh. 5 - Prob. 48RECh. 5 - Prob. 49RECh. 5 - Prob. 50RECh. 5 - Prob. 51RECh. 5 - For Exercises 49-54, solve the equation. 52....Ch. 5 - Prob. 53RECh. 5 - Prob. 54RECh. 5 - Prob. 55RECh. 5 - Prob. 56RECh. 5 - Prob. 57RECh. 5 - For Exercises 57-60, solve the equation. 58....Ch. 5 - Prob. 59RECh. 5 - Prob. 60RECh. 5 - Prob. 61RECh. 5 - Erik brought $108 Canadian with $100 American. At...Ch. 5 - Tony rode 175 mi on a 2-day bicycle ride to...Ch. 5 - Stephen drove his car 45 mi. HE ran out of gas and...Ch. 5 - Doug and Jean work as phone solicitors. They work...Ch. 5 - Two pipes can fill a tank in 6 hr. The large pipe...Ch. 5 - Prob. 67RECh. 5 - Prob. 68RECh. 5 - Prob. 69RECh. 5 - Prob. 70RECh. 5 - Prob. 1TCh. 5 - Prob. 2TCh. 5 - Prob. 3TCh. 5 - For Exercise 4-5, simplify to lowest terms. 4....Ch. 5 - Prob. 5TCh. 5 - Prob. 6TCh. 5 - Prob. 7TCh. 5 - Prob. 8TCh. 5 - Prob. 9TCh. 5 - Prob. 10TCh. 5 - Prob. 11TCh. 5 - Prob. 12TCh. 5 - Prob. 13TCh. 5 - Prob. 14TCh. 5 - Prob. 15TCh. 5 - Prob. 16TCh. 5 - Prob. 17TCh. 5 - Solve for m1. F=Gm1m2r2Ch. 5 - Prob. 19TCh. 5 - Prob. 20TCh. 5 - On a certain map, the distance between New York...Ch. 5 - Lance can ride 48 mi on his bike against the wind....Ch. 5 - Barbara can type a chapter in a book in 4hr. Jack...Ch. 5 - Prob. 24TCh. 5 - Prob. 25T
Knowledge Booster
Background pattern image
Algebra
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:PEARSON
Text book image
Contemporary Abstract Algebra
Algebra
ISBN:9781305657960
Author:Joseph Gallian
Publisher:Cengage Learning
Text book image
Linear Algebra: A Modern Introduction
Algebra
ISBN:9781285463247
Author:David Poole
Publisher:Cengage Learning
Text book image
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:9780135163078
Author:Michael Sullivan
Publisher:PEARSON
Text book image
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:9780980232776
Author:Gilbert Strang
Publisher:Wellesley-Cambridge Press
Text book image
College Algebra (Collegiate Math)
Algebra
ISBN:9780077836344
Author:Julie Miller, Donna Gerken
Publisher:McGraw-Hill Education
What is a Relation? | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=hV1_wvsdJCE;License: Standard YouTube License, CC-BY
RELATIONS-DOMAIN, RANGE AND CO-DOMAIN (RELATIONS AND FUNCTIONS CBSE/ ISC MATHS); Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=u4IQh46VoU4;License: Standard YouTube License, CC-BY