a) x² – x – 20 b) 5x2 – 80 c) 7x2 + 49x + 84

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter6: Factoring
Section6.1: Greatest Common Factor And Factor By Grouping
Problem 6.14TI: Factor by grouping: ab+7b+8a+56 .
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12.
Fully factor the following:
a) x2 – x
- x – 20
b) 5x2 – 80
c) 7x2 + 49x+ 84
Transcribed Image Text:12. Fully factor the following: a) x2 – x - x – 20 b) 5x2 – 80 c) 7x2 + 49x+ 84
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