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

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Question 34845: Factor:
ab + 7b - 3a - 21
Answer by stanbon(29603) About Me  (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.