## Elementary Algebra

Published by Cengage Learning

# Chapter 5 - Exponents and Polynomials - Chapters 1-5 Cumulative Review Problem Set - Page 233: 4

#### Answer

$-16$

#### Work Step by Step

Order of operations follow the PEMDAS rule. First Priority: P -Parentheses Second Priority: E - exponents Third Priority: M/D - Multiplication or division, whichever comes first from the left Fourth Priority: A/S - Addition or subtraction, whichever comes first from the left Perform multiplication first to obtain: $=4+(-2)-18$ Perform addition next, and then subtract to obtain: $=2-18 \\=-16$

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