Answer
$$(5x-3)(6x+5).$$
Work Step by Step
For the polynomial
$$
30x^2+7x-15
$$
we check the factors of $ac=30(-15)=-450$. The only factors that can give the right middle term are $-18$ and $25$, as follows
$$30x^2+7x-15 =(5x-3)(6x+5).$$
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: 33
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