Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 1 - Introduction to Algebraic Expressions - 1.8 Exponential Notation and Order of Operations - 1.8 Exercise Set - Page 66: 65



Work Step by Step

Using order of operations, the given expression, $ \dfrac{7^2-(-1)^7}{5\cdot7-4\cdot3^2-2^2} $, evaluates to \begin{array}{l} \dfrac{49-(-1)}{35-4\cdot9-4} \\\\= \dfrac{49+1}{35-36-4} \\\\= \dfrac{50}{-1-4} \\\\= \dfrac{50}{-5} \\\\= -10 .\end{array}
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.