SOLUTION: XY^9 -7y _____ * _______ 3Y^-2 21x^5

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Question 118841: XY^9 -7y
_____ * _______
3Y^-2 21x^5
Answer by jim_thompson5910(28598) About Me  (Show Source):
You can put this solution on YOUR website!

%28%28xy%5E9%29%2F%283y%5E-2%29%29%2A%28%28-7y%29%2F%2821x%5E5%29%29 Start with the given expression


%28%28xy%5E9%29%2A%28-7y%29%29%2F%28%283y%5E-2%29%2A%2821x%5E5%29%29 Combine the fractions


%28-7xy%5E10%29%2F%2863x%5E5y%5E-2%29 Multiply the numerators and denominators by adding the exponents


%28-1%2F9%29x%5E-4y%5E12 Divide



So %28%28xy%5E9%29%2F%283y%5E-2%29%29%2A%28%28-7y%29%2F%2821x%5E5%29%29 simplifies to %28-1%2F9%29x%5E-4y%5E12

In other words,