Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-2 Order of Operations and Evaluating Expressions - Practice and Problem-Solving Exercises: 55

Answer

20 $14-5\times3+3^2$

Work Step by Step

Use the order of operations to evaluate. $14+5\times3-3^2\longrightarrow$ resolve exponent $=14+5\times3-9\longrightarrow$ multiply $=14+15-9\longrightarrow$ add and subtract working left to right $=29-9\longrightarrow$ subtract $=20$ Changing the addition to subtraction and the subtraction to addition will give a result of 8. $14-5\times3+3^2\longrightarrow$ resolve exponent $=14-5\times3+9\longrightarrow$ multiply $=14-15+9\longrightarrow$ add and subtract working left to right $=-1+9\longrightarrow$ subtract $=8$
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