Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 1, Equations and Inequalities - 1.2 Evaluate and Simplify Algebraic Expressions - Graphing Calculator Activity - Practice - Page 17: 5

Answer

-136.5

Work Step by Step

Note, when using the calculator, it is necessary to use parenthesis, for the calculator will not necessarily know the correct order of operations. For instance, if division and addition are both performed, parenthesis may be necessary to indicate to the calculator that division is performed first according to PEDMAS. The correct use of parenthesis on the calculator is shown below: $$7(44.5-(8^2))=-136.5$$
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