SOLUTION: 7x2-31x-20

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Question 775023: 7x2-31x-20
Answer by tommyt3rd(5050) About Me  (Show Source):
You can put this solution on YOUR website!
-35*4=-120 and -35+4=-31
7x2-31x-20=
7x2-35x+4x-20=
7x(x-5)+4(x-5)=
(7x+4)(x-5)