Answer
$$(4x-1)(3x-4).$$
Work Step by Step
For the polynomial
$$
12x^2-19x+4
$$
we check the factors of $ac=12(-4)=-48$. The only factors that can give the right middle term are $-16$ and $-3$, as follows
$$12x^2-28x+15 =(4x-1)(3x-4).$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 10 - Review - Page 358: 32
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