Concept explainers
For Exercises 1—8, identify the statement as an expression or as an equation. Then simplify the expression or solve the equation.
1.
a.
b.
a.
To identify:if the givenstatement as an expression or equation and then solve usingmathematical methodologies.
Answer to Problem 1PR
The given statement is an expression and in simplified form it is
Explanation of Solution
Given information:
The given is below statement:
Calculation:
The given is below statement:
The given statement is in the form of expression as there is no value to equate this expression with.
Below is the solution of given expression:
Hence, the given expression in simplified form is
b.
To identify: if the given statement as an expression or equation and then solve using mathematical methodologies.
Answer to Problem 1PR
The given statement is an equation and in simplified form it is
Explanation of Solution
Given information:
The given is below statement:
Calculation:
The given is below statement:
The given statement is in the form of equation as there is a value to equate this statement with.
Below is the solution of given equation:
Hence, the given expression in simplified form is
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Chapter 1 Solutions
COLLEGE ALG.+TRIG.(LL)-W/ACCESS>CUSTOM<
- In Exercises 11–12, solve each quadratic equation using the quadratic formula. Express solutions in standard form. 12. 2x? - 6x + 5 = 0 11. x? - 2r + 4 = 0arrow_forwardWhen the equation 5.74a? + 3.30 – 1.44 = 0 is solved, the two values of the unknown a are andarrow_forwardSolve for x. 4(x + 4) 26 = x+8arrow_forward
- Exercises 105-120: Complete the following. (a) Write the equation as ax² + bx + e = 0 with a > 0. (b) Calculate the discriminant b² – 4ac and determine the number of real solutions. (c) Solve the equation. 105. 3x² = 12 106. 8x - 2 = 14 107. x² – 2x = -1 108. 6x² = 4x 109. 4x = x? 110. 16x + 9 = 24x 111. x² + 1 = x 112. 2x² + x = 2 113. 2x² + 3x = 12 – 2x 114. 3x² + 3 = 5x 115. x(x – 4) = -4 116. + 3x = x – 4 117. x(x + 2) = -13 118. 4x = 6 + x? 119. 3x = 1- x 120. x(5x – 3) = 1arrow_forwardTell whether (9,2 is a solution of yarrow_forward5+3x=26. what is X?arrow_forward
- For Exercises 107–108, solve the equation in two ways. a. Solve as a radical equation by first isolating the radical. b. Solve by writing the equation in quadratic form and using an appropriate substitution. 107. y + 4Vy = 21 108. w – 3Vw = 10arrow_forwardWhich equation has the same solution as x2 – 13x – 18 = 0? (x – 6.5)2 = –24.25 O (x – 6.5)² = 60.25 O (x + 6.5)² = 60.25 O (x + 6.5)² = -24.25arrow_forwardSolve . Don't forget to Check! 1/y+2/y=3arrow_forward
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