Answer
$$15x^2 -11x -12.$$
Work Step by Step
We have
$$(5x + 3)(3x- 4)=(5x + 3)(3x)+(5x + 3)(- 4)\\
=15x^2 + 9x-20x -12=15x^2 -11x -12.$$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Review - Page 232: 27
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