Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter R - Algebra Reference - R.2 Factoring - R.2 Exercises - Page R-8: 16



Work Step by Step

Factor out $6$ to have: $=6(a^2 -8a-20)$ The leading coefficient of the trinomial factor is 1. To factor the trinomial, just look for the factors of the constant term (-20) whose sum is equal to the coefficient of the middle term (-8). These factors are $-10$ and $2$. Thus, the completely factored form of the given expression is: $=6(a-10)(a+2)$
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