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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 966. (page 191)

In the following exercise, simplify.
${(4 + 5)}^{2}$

Short Answer

Expert verified

$81$

Step by step solution

01

Step 1. Given information

An expression is ${(4 + 5)}^{2}$ .

02

Step 2. Simplify the expression.

$\begin{array}{rcl} {(4 + 5)}^{2} & = & 9^{2} \\ = & 81 \end{array}$

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Most popular questions from this chapter

In the following exercise, simplify the expression: $11 - 3 [7 - 4 (- 2)]$

Translate from algebra to English.

$16 - 9$

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$a) 8 + 3 \times 9 b) (8 + 3) \times 9 .$

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$r^{2} - s^{2} when r = 12, s = 5$

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