Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00 Edition
ISBN: 9780395977224
Author: Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher: McDougal Littell
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 12.3, Problem 17WE
To determine

To solve: the equation 3x2+8x=2 using quadratic formula. Give irrational roots in simplest radical form and then approximate them to the nearest tenth.

Expert Solution & Answer
Check Mark

Answer to Problem 17WE

The required answer is: solution set is 2.9, - 0.23

Explanation of Solution

Given information:

The given equation: 3x2+8x=2

Calculation:

  3x2+8x=23x2+8x2=22

(Subtract 2 from both sides)

  3x2+8x2=0

(Simplify)

  x=b±b24ac2a

(Quadratic formula)

Where a=3,b=8andc=2

  x=(8)±(8)24(3)(2)2(3)

(Removing the brackets)

  =8±64+246=8±886=8±4226

(Product property of square roots)

  =8±2226=2(4±22)6

(Distributive property)

  =4±223

(Simplify)

Since 224.69 , x4+4.693=8.6932.9

Or     x44.693=0.6930.23

Therefore the solution set is 4+223,4223 or 2.9, - 0.23

Chapter 12 Solutions

Algebra: Structure And Method, Book 1

Ch. 12.1 - Prob. 2WECh. 12.1 - Prob. 3WECh. 12.1 - Prob. 4WECh. 12.1 - Prob. 5WECh. 12.1 - Prob. 6WECh. 12.1 - Prob. 7WECh. 12.1 - Prob. 8WECh. 12.1 - Prob. 9WECh. 12.1 - Prob. 10WECh. 12.1 - Prob. 11WECh. 12.1 - Prob. 12WECh. 12.1 - Prob. 13WECh. 12.1 - Prob. 14WECh. 12.1 - Prob. 15WECh. 12.1 - Prob. 16WECh. 12.1 - Prob. 17WECh. 12.1 - Prob. 18WECh. 12.1 - Prob. 19WECh. 12.1 - Prob. 20WECh. 12.1 - Prob. 21WECh. 12.1 - Prob. 22WECh. 12.1 - Prob. 23WECh. 12.1 - Prob. 24WECh. 12.1 - Prob. 25WECh. 12.1 - Prob. 26WECh. 12.1 - Prob. 27WECh. 12.1 - Prob. 28WECh. 12.1 - Prob. 29WECh. 12.1 - Prob. 30WECh. 12.1 - Prob. 31WECh. 12.1 - Prob. 32WECh. 12.1 - Prob. 33WECh. 12.1 - Prob. 34WECh. 12.1 - Prob. 35WECh. 12.1 - Prob. 36WECh. 12.1 - Prob. 37WECh. 12.1 - Prob. 38WECh. 12.1 - Prob. 39WECh. 12.1 - Prob. 40WECh. 12.1 - Prob. 41WECh. 12.1 - Prob. 42WECh. 12.1 - Prob. 43WECh. 12.1 - Prob. 44WECh. 12.1 - Prob. 45WECh. 12.1 - Prob. 46WECh. 12.1 - Prob. 47WECh. 12.1 - Prob. 48WECh. 12.1 - Prob. 49WECh. 12.1 - Prob. 1MRECh. 12.1 - Prob. 2MRECh. 12.1 - Prob. 3MRECh. 12.1 - Prob. 4MRECh. 12.1 - Prob. 5MRECh. 12.1 - Prob. 6MRECh. 12.1 - Prob. 7MRECh. 12.1 - Prob. 8MRECh. 12.2 - Prob. 1OECh. 12.2 - Prob. 2OECh. 12.2 - Prob. 3OECh. 12.2 - Prob. 4OECh. 12.2 - Prob. 5OECh. 12.2 - Prob. 6OECh. 12.2 - Prob. 1WECh. 12.2 - Prob. 2WECh. 12.2 - Prob. 3WECh. 12.2 - Prob. 4WECh. 12.2 - Prob. 5WECh. 12.2 - Prob. 6WECh. 12.2 - Prob. 7WECh. 12.2 - Prob. 8WECh. 12.2 - Prob. 9WECh. 12.2 - Prob. 10WECh. 12.2 - Prob. 11WECh. 12.2 - Prob. 12WECh. 12.2 - Prob. 13WECh. 12.2 - Prob. 14WECh. 12.2 - Prob. 15WECh. 12.2 - Prob. 16WECh. 12.2 - Prob. 17WECh. 12.2 - Prob. 18WECh. 12.2 - Prob. 19WECh. 12.2 - Prob. 20WECh. 12.2 - Prob. 21WECh. 12.2 - Prob. 22WECh. 12.2 - Prob. 23WECh. 12.2 - Prob. 24WECh. 12.2 - Prob. 25WECh. 12.2 - Prob. 26WECh. 12.2 - Prob. 27WECh. 12.2 - Prob. 28WECh. 12.2 - Prob. 29WECh. 12.2 - Prob. 30WECh. 12.2 - Prob. 1MRECh. 12.2 - Prob. 2MRECh. 12.2 - Prob. 3MRECh. 12.2 - Prob. 4MRECh. 12.2 - Prob. 5MRECh. 12.2 - Prob. 6MRECh. 12.2 - Prob. 7MRECh. 12.3 - Prob. 1OECh. 12.3 - Prob. 2OECh. 12.3 - Prob. 3OECh. 12.3 - Prob. 4OECh. 12.3 - Prob. 5OECh. 12.3 - Prob. 6OECh. 12.3 - Prob. 7OECh. 12.3 - Prob. 8OECh. 12.3 - Prob. 9OECh. 12.3 - Prob. 10OECh. 12.3 - Prob. 11OECh. 12.3 - Prob. 12OECh. 12.3 - Prob. 1WECh. 12.3 - Prob. 2WECh. 12.3 - Prob. 3WECh. 12.3 - Prob. 4WECh. 12.3 - Prob. 5WECh. 12.3 - Prob. 6WECh. 12.3 - Prob. 7WECh. 12.3 - Prob. 8WECh. 12.3 - Prob. 9WECh. 12.3 - Prob. 10WECh. 12.3 - Prob. 11WECh. 12.3 - Prob. 12WECh. 12.3 - Prob. 13WECh. 12.3 - Prob. 14WECh. 12.3 - Prob. 15WECh. 12.3 - Prob. 16WECh. 12.3 - Prob. 17WECh. 12.3 - Prob. 18WECh. 12.3 - Prob. 19WECh. 12.3 - Prob. 20WECh. 12.3 - Prob. 21WECh. 12.3 - Prob. 22WECh. 12.3 - Prob. 23WECh. 12.3 - Prob. 24WECh. 12.3 - Prob. 25WECh. 12.3 - Prob. 26WECh. 12.3 - Prob. 27WECh. 12.3 - Prob. 28WECh. 12.3 - Prob. 29WECh. 12.3 - Prob. 30WECh. 12.3 - Prob. 31WECh. 12.3 - Prob. 1MRECh. 12.3 - Prob. 2MRECh. 12.3 - Prob. 3MRECh. 12.3 - Prob. 4MRECh. 12.3 - Prob. 5MRECh. 12.3 - Prob. 6MRECh. 12.3 - Prob. 7MRECh. 12.3 - Prob. 8MRECh. 12.3 - Prob. 9MRECh. 12.3 - Prob. 10MRECh. 12.3 - Prob. 11MRECh. 12.3 - Prob. 12MRECh. 12.3 - Prob. 1CECh. 12.3 - Prob. 2CECh. 12.3 - Prob. 3CECh. 12.3 - Prob. 4CECh. 12.3 - Prob. 5CECh. 12.3 - Prob. 6CECh. 12.3 - Prob. 7CECh. 12.3 - Prob. 1ECh. 12.3 - Prob. 2ECh. 12.3 - Prob. 3ECh. 12.3 - Prob. 4ECh. 12.3 - Prob. 5ECh. 12.3 - Prob. 6ECh. 12.3 - Prob. 7ECh. 12.3 - Prob. 8ECh. 12.3 - Prob. 9ECh. 12.3 - Prob. 10ECh. 12.3 - Prob. 11ECh. 12.3 - Prob. 12ECh. 12.3 - Prob. 13ECh. 12.3 - Prob. 14ECh. 12.3 - Prob. 15ECh. 12.3 - Prob. 16ECh. 12.3 - Prob. 17ECh. 12.3 - Prob. 18ECh. 12.3 - Prob. 19ECh. 12.3 - Prob. 20ECh. 12.3 - Prob. 21ECh. 12.3 - Prob. 22ECh. 12.4 - Prob. 1OECh. 12.4 - Prob. 2OECh. 12.4 - Prob. 3OECh. 12.4 - Prob. 4OECh. 12.4 - Prob. 5OECh. 12.4 - Prob. 6OECh. 12.4 - Prob. 7OECh. 12.4 - Prob. 8OECh. 12.4 - Prob. 1WECh. 12.4 - Prob. 2WECh. 12.4 - Prob. 3WECh. 12.4 - Prob. 4WECh. 12.4 - Prob. 5WECh. 12.4 - Prob. 6WECh. 12.4 - Prob. 7WECh. 12.4 - Prob. 8WECh. 12.4 - Prob. 9WECh. 12.4 - Prob. 10WECh. 12.4 - Prob. 11WECh. 12.4 - Prob. 12WECh. 12.4 - Prob. 13WECh. 12.4 - Prob. 14WECh. 12.4 - Prob. 15WECh. 12.4 - Prob. 16WECh. 12.4 - Prob. 17WECh. 12.4 - Prob. 18WECh. 12.4 - Prob. 19WECh. 12.4 - Prob. 20WECh. 12.4 - Prob. 1MRECh. 12.4 - Prob. 2MRECh. 12.4 - Prob. 3MRECh. 12.4 - Prob. 4MRECh. 12.4 - Prob. 5MRECh. 12.4 - Prob. 6MRECh. 12.4 - Prob. 7MRECh. 12.4 - Prob. 8MRECh. 12.4 - Prob. 9MRECh. 12.4 - Prob. 10MRECh. 12.4 - Prob. 11MRECh. 12.4 - Prob. 12MRECh. 12.4 - Prob. 1CECh. 12.4 - Prob. 2CECh. 12.4 - Prob. 3CECh. 12.4 - Prob. 1STCh. 12.4 - Prob. 2STCh. 12.4 - Prob. 3STCh. 12.4 - Prob. 4STCh. 12.4 - Prob. 5STCh. 12.4 - Prob. 6STCh. 12.4 - Prob. 7STCh. 12.4 - Prob. 8STCh. 12.5 - Prob. 1OECh. 12.5 - Prob. 2OECh. 12.5 - Prob. 3OECh. 12.5 - Prob. 4OECh. 12.5 - Prob. 5OECh. 12.5 - Prob. 6OECh. 12.5 - Prob. 7OECh. 12.5 - Prob. 8OECh. 12.5 - Prob. 9OECh. 12.5 - Prob. 10OECh. 12.5 - Prob. 11OECh. 12.5 - Prob. 12OECh. 12.5 - Prob. 13OECh. 12.5 - Prob. 1WECh. 12.5 - Prob. 2WECh. 12.5 - Prob. 3WECh. 12.5 - Prob. 4WECh. 12.5 - Prob. 5WECh. 12.5 - Prob. 6WECh. 12.5 - Prob. 7WECh. 12.5 - Prob. 8WECh. 12.5 - Prob. 9WECh. 12.5 - Prob. 10WECh. 12.5 - Prob. 11WECh. 12.5 - Prob. 12WECh. 12.5 - Prob. 13WECh. 12.5 - Prob. 14WECh. 12.5 - Prob. 15WECh. 12.5 - Prob. 16WECh. 12.5 - Prob. 17WECh. 12.5 - Prob. 18WECh. 12.5 - Prob. 19WECh. 12.5 - Prob. 20WECh. 12.5 - Prob. 21WECh. 12.5 - Prob. 22WECh. 12.5 - Prob. 23WECh. 12.5 - Prob. 24WECh. 12.5 - Prob. 25WECh. 12.5 - Prob. 26WECh. 12.5 - Prob. 27WECh. 12.5 - Prob. 28WECh. 12.5 - Prob. 29WECh. 12.5 - Prob. 30WECh. 12.5 - Prob. 31WECh. 12.5 - Prob. 1MRECh. 12.5 - Prob. 2MRECh. 12.5 - Prob. 3MRECh. 12.5 - Prob. 4MRECh. 12.5 - Prob. 5MRECh. 12.5 - Prob. 6MRECh. 12.5 - Prob. 7MRECh. 12.5 - Prob. 8MRECh. 12.5 - Prob. 9MRECh. 12.5 - Prob. 10MRECh. 12.5 - Prob. 11MRECh. 12.5 - Prob. 12MRECh. 12.6 - Prob. 1PCh. 12.6 - Prob. 2PCh. 12.6 - Prob. 3PCh. 12.6 - Prob. 4PCh. 12.6 - Prob. 5PCh. 12.6 - Prob. 6PCh. 12.6 - Prob. 7PCh. 12.6 - Prob. 8PCh. 12.6 - Prob. 9PCh. 12.6 - Prob. 10PCh. 12.6 - Prob. 11PCh. 12.6 - Prob. 12PCh. 12.6 - Prob. 13PCh. 12.6 - Prob. 14PCh. 12.6 - Prob. 15PCh. 12.6 - Prob. 1MRECh. 12.6 - Prob. 2MRECh. 12.6 - Prob. 3MRECh. 12.6 - Prob. 4MRECh. 12.6 - Prob. 5MRECh. 12.6 - Prob. 6MRECh. 12.6 - Prob. 7MRECh. 12.6 - Prob. 8MRECh. 12.6 - Prob. 9MRECh. 12.6 - Prob. 1ECh. 12.6 - Prob. 2ECh. 12.6 - Prob. 3ECh. 12.6 - Prob. 4ECh. 12.6 - Prob. 5ECh. 12.6 - Prob. 6ECh. 12.6 - Prob. 7ECh. 12.6 - Prob. 8ECh. 12.6 - Prob. 9ECh. 12.6 - Prob. 1STCh. 12.6 - Prob. 2STCh. 12.6 - Prob. 3STCh. 12.6 - Prob. 4STCh. 12.6 - Prob. 5STCh. 12.6 - Prob. 6STCh. 12.6 - Prob. 1.1ECh. 12.6 - Prob. 1.2ECh. 12.6 - Prob. 1.3ECh. 12.6 - Prob. 1.4ECh. 12.6 - Prob. 1.5ECh. 12.7 - Prob. 1OECh. 12.7 - Prob. 2OECh. 12.7 - Prob. 3OECh. 12.7 - Prob. 4OECh. 12.7 - Prob. 5OECh. 12.7 - Prob. 6OECh. 12.7 - Prob. 1PCh. 12.7 - Prob. 2PCh. 12.7 - Prob. 3PCh. 12.7 - Prob. 4PCh. 12.7 - Prob. 5PCh. 12.7 - Prob. 6PCh. 12.7 - Prob. 7PCh. 12.7 - Prob. 8PCh. 12.7 - Prob. 9PCh. 12.7 - Prob. 10PCh. 12.7 - Prob. 11PCh. 12.7 - Prob. 12PCh. 12.7 - Prob. 1MRECh. 12.7 - Prob. 2MRECh. 12.7 - Prob. 3MRECh. 12.7 - Prob. 4MRECh. 12.7 - Prob. 5MRECh. 12.7 - Prob. 6MRECh. 12.7 - Prob. 7MRECh. 12.7 - Prob. 8MRECh. 12.7 - Prob. 9MRECh. 12.7 - Prob. 10MRECh. 12.7 - Prob. 11MRECh. 12.7 - Prob. 12MRECh. 12.8 - Prob. 1OECh. 12.8 - Prob. 2OECh. 12.8 - Prob. 3OECh. 12.8 - Prob. 4OECh. 12.8 - Prob. 5OECh. 12.8 - Prob. 6OECh. 12.8 - Prob. 7OECh. 12.8 - Prob. 8OECh. 12.8 - Prob. 9OECh. 12.8 - Prob. 10OECh. 12.8 - Prob. 11OECh. 12.8 - Prob. 12OECh. 12.8 - Prob. 13OECh. 12.8 - Prob. 14OECh. 12.8 - Prob. 1WECh. 12.8 - Prob. 2WECh. 12.8 - Prob. 3WECh. 12.8 - Prob. 4WECh. 12.8 - Prob. 5WECh. 12.8 - Prob. 6WECh. 12.8 - Prob. 7WECh. 12.8 - Prob. 8WECh. 12.8 - Prob. 9WECh. 12.8 - Prob. 10WECh. 12.8 - Prob. 1PCh. 12.8 - Prob. 2PCh. 12.8 - Prob. 3PCh. 12.8 - Prob. 4PCh. 12.8 - Prob. 5PCh. 12.8 - Prob. 6PCh. 12.8 - Prob. 7PCh. 12.8 - Prob. 8PCh. 12.8 - Prob. 9PCh. 12.8 - Prob. 10PCh. 12.8 - Prob. 11PCh. 12.8 - Prob. 12PCh. 12.8 - Prob. 13PCh. 12.8 - Prob. 14PCh. 12.8 - Prob. 1MRECh. 12.8 - Prob. 2MRECh. 12.8 - Prob. 3MRECh. 12.8 - Prob. 4MRECh. 12.8 - Prob. 5MRECh. 12.8 - Prob. 6MRECh. 12.8 - Prob. 7MRECh. 12.8 - Prob. 8MRECh. 12.8 - Prob. 9MRECh. 12.8 - Prob. 10MRECh. 12.8 - Prob. 11MRECh. 12.8 - Prob. 12MRECh. 12.8 - Prob. 1ECh. 12.8 - Prob. 2ECh. 12.8 - Prob. 3ECh. 12.8 - Prob. 4ECh. 12.8 - Prob. 5ECh. 12.8 - Prob. 1STCh. 12.8 - Prob. 2STCh. 12 - Prob. 1CRCh. 12 - Prob. 2CRCh. 12 - Prob. 3CRCh. 12 - Prob. 4CRCh. 12 - Prob. 5CRCh. 12 - Prob. 6CRCh. 12 - Prob. 7CRCh. 12 - Prob. 8CRCh. 12 - Prob. 9CRCh. 12 - Prob. 10CRCh. 12 - Prob. 11CRCh. 12 - Prob. 12CRCh. 12 - Prob. 1CTCh. 12 - Prob. 2CTCh. 12 - Prob. 3CTCh. 12 - Prob. 4CTCh. 12 - Prob. 5CTCh. 12 - Prob. 6CTCh. 12 - Prob. 7CTCh. 12 - Prob. 8CTCh. 12 - Prob. 9CTCh. 12 - Prob. 10CTCh. 12 - Prob. 11CTCh. 12 - Prob. 12CTCh. 12 - Prob. 13CTCh. 12 - Prob. 1CLRCh. 12 - Prob. 2CLRCh. 12 - Prob. 3CLRCh. 12 - Prob. 4CLRCh. 12 - Prob. 5CLRCh. 12 - Prob. 6CLRCh. 12 - Prob. 7CLRCh. 12 - Prob. 8CLRCh. 12 - Prob. 9CLRCh. 12 - Prob. 10CLRCh. 12 - Prob. 11CLRCh. 12 - Prob. 12CLRCh. 12 - Prob. 13CLRCh. 12 - Prob. 14CLRCh. 12 - Prob. 15CLRCh. 12 - Prob. 16CLRCh. 12 - Prob. 17CLRCh. 12 - Prob. 18CLRCh. 12 - Prob. 19CLRCh. 12 - Prob. 20CLRCh. 12 - Prob. 21CLRCh. 12 - Prob. 22CLRCh. 12 - Prob. 23CLRCh. 12 - Prob. 24CLRCh. 12 - Prob. 25CLRCh. 12 - Prob. 26CLRCh. 12 - Prob. 27CLRCh. 12 - Prob. 28CLRCh. 12 - Prob. 29CLRCh. 12 - Prob. 30CLRCh. 12 - Prob. 31CLRCh. 12 - Prob. 32CLRCh. 12 - Prob. 33CLRCh. 12 - Prob. 34CLRCh. 12 - Prob. 35CLRCh. 12 - Prob. 36CLRCh. 12 - Prob. 37CLRCh. 12 - Prob. 38CLRCh. 12 - Prob. 39CLRCh. 12 - Prob. 40CLRCh. 12 - Prob. 41CLRCh. 12 - Prob. 42CLRCh. 12 - Prob. 43CLRCh. 12 - Prob. 44CLRCh. 12 - Prob. 45CLRCh. 12 - Prob. 46CLRCh. 12 - Prob. 47CLRCh. 12 - Prob. 48CLRCh. 12 - Prob. 49CLRCh. 12 - Prob. 50CLRCh. 12 - Prob. 51CLRCh. 12 - Prob. 52CLRCh. 12 - Prob. 53CLRCh. 12 - Prob. 54CLRCh. 12 - Prob. 55CLRCh. 12 - Prob. 56CLRCh. 12 - Prob. 57CLRCh. 12 - Prob. 58CLRCh. 12 - Prob. 59CLRCh. 12 - Prob. 60CLRCh. 12 - Prob. 61CLRCh. 12 - Prob. 62CLRCh. 12 - Prob. 63CLRCh. 12 - Prob. 64CLRCh. 12 - Prob. 65CLRCh. 12 - Prob. 66CLRCh. 12 - Prob. 67CLRCh. 12 - Prob. 68CLRCh. 12 - Prob. 69CLRCh. 12 - Prob. 70CLRCh. 12 - Prob. 71CLRCh. 12 - Prob. 72CLRCh. 12 - Prob. 73CLRCh. 12 - Prob. 74CLRCh. 12 - Prob. 75CLRCh. 12 - Prob. 76CLRCh. 12 - Prob. 77CLRCh. 12 - Prob. 78CLRCh. 12 - Prob. 79CLRCh. 12 - Prob. 80CLRCh. 12 - Prob. 81CLRCh. 12 - Prob. 82CLRCh. 12 - Prob. 83CLRCh. 12 - Prob. 84CLR
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
10 - Roots of polynomials; Author: Technion;https://www.youtube.com/watch?v=88YUeigknNg;License: Standard YouTube License, CC-BY