Answer
$x^{2}+11x+18$
Work Step by Step
$(x+2)(x+9)=$
$...$distribute the second factor, $(x+9)$.
$=x(x+9)+2(x+9)$
...distribute $x$.
$=x^{2}+9x+2(x+9)$
...distribute $2$.
$=x^{2}+9x+2x+18$
...gather like terms.
=$x^{2}+11x+18$
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 8 - Polynomials and Factoring - Mid-Chapter Quiz - Page 510: 13
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