Answer
$$(16x+5)(x-1).$$
Work Step by Step
For the polynomial
$$
16x^2 - 11x - 5
$$
we check the factors of $ac=-5(16)=-80$. The only factors that can give the right middle term are $-5$ and $16$, as follows
$$16x^2 - 11x - 5 =(16x+5)(x-1).$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
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: 9
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