SOLUTION: factor 7x^2-21xy-28^2
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Question 236037: factor 7x^2-21xy-28^2
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
7x^2-21xy-28y^2 [I'll assume there is supposed to be a y in the -28^2 term]
7(x^2-3xy-4y^2)
7(x-4y)(x+1y) ans.
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