SOLUTION: add (7x^2-xy+y^2)+(-x^2-7xy+5y^2)

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Question 243513: add (7x^2-xy+y^2)+(-x^2-7xy+5y^2)
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%287x%5E2-xy%2By%5E2%29%2B%28-x%5E2-7xy%2B5y%5E2%29 Start with the given expression.


7x%5E2-xy%2By%5E2-x%5E2-7xy%2B5y%5E2 Remove the parenthesis.


%287x%5E2-x%5E2%29%2B%28-xy-7xy%29%2B%28y%5E2%2B5y%5E2%29 Group like terms.


6x%5E2-8xy%2B6y%5E2 Combine like terms.


So %287x%5E2-xy%2By%5E2%29%2B%28-x%5E2-7xy%2B5y%5E2%29=6x%5E2-8xy%2B6y%5E2