SOLUTION: Factoring today 49ab - 28a - 35b + 20

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Question 1017422: Factoring today
49ab - 28a - 35b + 20
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
By grouping we have
49ab - 28a - 35b + 20 =
7a(7b - 4) - 5(7b - 4) =
(7a - 5)(7b - 4)