SOLUTION: Simplify {{{(4x^2-7xy+y^2)+(-8x^2-2xy-y^2)+(x^2+xy-7y^2)}}}

Algebra ->  Graphs -> SOLUTION: Simplify {{{(4x^2-7xy+y^2)+(-8x^2-2xy-y^2)+(x^2+xy-7y^2)}}}      Log On


   

Question 132145: Simplify %284x%5E2-7xy%2By%5E2%29%2B%28-8x%5E2-2xy-y%5E2%29%2B%28x%5E2%2Bxy-7y%5E2%29
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
%284x%5E2-7xy%2By%5E2%29%2B%28-8x%5E2-2xy-y%5E2%29%2B%28x%5E2%2Bxy-7y%5E2%29 Start with the given expression


%28y%5E2-y%5E2-7y%5E2%29%2B%284x%5E2-8x%5E2%2Bx%5E2%29%2B%28-7xy-2xy%2Bxy%29 Group like terms


-7y%5E2-3x%5E2-8xy Combine like terms