Answer
(5x-3)*(x+7)
Work Step by Step
Multiplying these two numbers would give us $5x^{2}+32x-21$. This answer can be solved by finding the factors of -21 and testing which pair adds to 32.
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 9 - Quadratic Functions and Equations - Get Ready! - Page 543: 20
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