SOLUTION: factor completely. 9x^2-36y^2. factor complely. x^2-15wy+3xy-5wx. thank you.

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: factor completely. 9x^2-36y^2. factor complely. x^2-15wy+3xy-5wx. thank you.      Log On


   

Question 172742: factor completely. 9x^2-36y^2. factor complely. x^2-15wy+3xy-5wx. thank you.
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
%283x%29%5E2-%286y%29%5E2 since 3%5E2=9and 6%5E2=36we are left with the difference of squares here
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highlight%28%283x%2B6y%29%283x-6y%29%29factoring
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x%5E2-15wy%2B3xy-5wxlets line up the terms that have like variables
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-15wy -5wy)so factor out a -5 and w -5w(3y+x)
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x%5E2%2B3xyso factor out an x.........x(x+3y)
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do you see any terms that are alike.... that we can factor out of these terms......yes (3y+x)
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so x%28x%2B3y%29-5w%28x%2B3y%29
factors to
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highlight%28%28x%2B3y%29%28x-5w%29%29