Answer
$(r+10)(r-4)$
Work Step by Step
Factor each expression.
$r^{2}+6r-40$
Find two numbers that multiply to $-40$ and add up to $6$
$10\times-4=-40$
$10-4=6$
Factor
$(r+10)(r-4)$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 8 - Polynomials and Factoring - Chapter Review - 8-5 and 8-6 Factoring Quadratic Trinomials - Page 525: 46
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