SOLUTION: add (5x^2-xy+y^2)+(-x^2-7xy+9y^2)
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Question 266386
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add (5x^2-xy+y^2)+(-x^2-7xy+9y^2)
Answer by
user_dude2008(1862)
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(5x^2-xy+y^2)+(-x^2-7xy+9y^2) = 4x^2 - 8xy +10y^2
(