Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Review - Exercises - Page 134: 39

Answer

4$Y^{2}$ - 49

Work Step by Step

This problem requires us to multiple out a factored equation. 1. First multiply the 2Y terms, giving you 4$Y^{2}$ 2. Then multiply 2Y and 7 , then 2Y and -7, giving us 14Y - 14Y 3. Then Multiply 7 and -7, giving us -49 4. Combine all these terms together to get 4$Y^{2}$ + 14Y - 14Y - 49 5. Simplify the equation to get 4$Y^{2}$ - 49
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