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Elementary Algebra

Lynn Marecek, MaryAnne Anthony-Smith

$Math Studyset Vaia Explanations$ Math

2nd Edition · 1240 pages

ISBN: 9780998625713

Chapter 1: Q 1.110 (page 71)

Evaluate ${(x + y)}^{3}$ when $x = - 8, y = 10$

Short Answer

Expert verified

The value of the expression is $8$

Step by step solution

01

Step 1. Given Information

It is asked to find values of ${(x + y)}^{3}$ when $x = - 8, y = 10$

02

Step 2. Evaluating the expression value

The expression is

${(x + y)}^{3}$

Substitute $- 8$ for $x$ and $10$ for $y$

$= {(- 8 + 10)}^{3}$

Add inside parenthesis

$= {(2)}^{3}$

Simplify

$= 2 \times 2 \times 2 = 8$

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