Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 1 - Section 1.7 - Exponents and Order of Operations - Exercise Set - Page 74: 83

Answer

$8$

Work Step by Step

Solve using PEMDAS (The priority list for solving expressions: Parentheses, exponents, [multiplication, division], [addition, subtraction]. For the operations in the brackets, solve from left to right) $[13 \div (20-7) + 2^5] - (2+3)^2 = [13 \div 13 + 2^5] - (2+3)^2 = [13 \div 13 + 32] - (2+3)^2 = [1+32]-(2+3)^2 = 33-(2+3)^2 = 33-5^2 = 33-25 = 8$
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