Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 10 - Section 10.6 - Factoring General Trinomials - Exercise - Page 356: 16

Answer

$(2m+5)(m-6)$

Work Step by Step

For the polynomial $$ 2m^2 -7m -30 $$ we check the factors of $ac=2(-30)=-60$. The only factors that can give the right middle term are $5$ and $-12$, as follows $$ 2m^2 -7m -30=(2m+5)(m-6) .$$
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