Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 5 - Exponents and Polynomials - Chapter 5 Review Problem Set: 7

Answer

2$y^{2}$ - 54y + 18

Work Step by Step

6($y^{2}$ - 7y - 3) - 4($y^{2}$ + 3y - 9) = Use the distributive property to remove round brackets. 6$y^{2}$ - 42y - 18 - 4$y^{2}$ - 12y + 36 Group similar terms. (6$y^{2}$ - 4$y^{2}$) + (-42y - 12y) + (-18 + 36) = 2$y^{2}$ - 54y + 18
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