SOLUTION: Expand the power of the binomial. (3x-y)^3

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Question 881739: Expand the power of the binomial. (3x-y)^3
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%283x-y%29%5E3


%283x-y%29%283x-y%29%283x-y%29


%283x-y%29%289x%5E2-3xy-3xy%2By%5E2%29


%283x-y%29%289x%5E2-6xy%2By%5E2%29


3x%289x%5E2-6xy%2By%5E2%29-y%289x%5E2-6xy%2By%5E2%29


3x%289x%5E2%29%2B3x%28-6xy%29%2B3x%28y%5E2%29-y%289x%5E2%29-y%28-6xy%29-y%28y%5E2%29


27x%5E3-18x%5E2y%2B3xy%5E2-9x%5E2y%2B6xy%5E2-y%5E3


27x%5E3-27x%5E2y%2B9xy%5E2-y%5E3


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%283x-y%29%5E3 expands out to 27x%5E3-27x%5E2y%2B9xy%5E2-y%5E3