SOLUTION: i need help with a math problem i need it to be solved the problem is (40-2x)(17-2x) i know that the answer is 222 but i don't know how that is possible

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Question 117847: i need help with a math problem i need it to be solved
the problem is (40-2x)(17-2x) i know that the answer is 222 but i don't know how that is possible

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(40-2x)(17-2x)
Use FOIL:
F: 40*17 = 680
O: -2x*40 = -80x
I: -2x*17 = -34x
L: -2x*-2x = 4x^2
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Combine the terms to get:
4x^2-114x+680
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Cheers,
Stan H.