Answer
(r + 10s)(r + 9s)
Work Step by Step
$r^{2}$ + 10 rs + 9 rs + $90s^{2}$
Find the GCD of the first two and the GDC of the last two terms.
r(r + 10s) +9s(r + 10s)
We take (r + 10s) and factor it out which gives us.
(r + 10s)(r + 9s)
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 8 - Polynomials and Factoring - 8-5 Factoring X(squared) + bx + c - Practice and Problem-Solving Exercises - Page 504: 35
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