SOLUTION: Factor: ab + 7b - 3a - 21

SOLUTION: Factor: ab + 7b - 3a - 21

Algebra.Com

Question 34845: Factor:
ab + 7b - 3a - 21
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
ab + 7b - 3a - 21
=b(a+7) -3(a+7)
=(a+7)(b-3)
Cheers,
Stan H.
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