Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - Chapter Review - Page 69: 27



Work Step by Step

First, you have to substitute in 5 for d, so the new equation is: $(2+5)^{2}$ - $3^{2}$. Now, you will add the part in the parentheses to get $7^{2}$. Now just expand this out and solve: 7 x 7 - 3 x 3=49-9=40. 40 is your answer.
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