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Question 233508: Perform the indicated operations.
(4x-7y)(3x+2y)
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! (4x-7y)(3x+2y)
This is a FOIL problem. Do you know what that means? If not, send me an Email and I'll send you a couple of links.
F= First*First = 4x*3x=12x^2
O= Outer*Outer = 4x*2y=8xy
I=Inner *Inner = -7y*3x=-21xy
L=Last*Last = -7y*2y =-14y^2
Add them up and combine like terms:
12x^2 +8xy-21xy -14y^2
12x^2 -13xy - 14y^2
Dr. Robert J. Rapalje, Retired
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