Answer
$x^{2}+5x-50$
Work Step by Step
Using the FOIL method, $(x-5)(x+10)=(x)(x)+(x)(10)+(-5)(x)+(-5)(10)=x^{2}+10x+(-5x)+(-50)=x^{2}+10x-5x-50=x^{2}+5x-50$.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Special Products - Exercise Set - Page 387: 3
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