SOLUTION: How would I simplify (7x^2+2xy+y^2)-(7x^2-2xy+x^2)?

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Question 942548: How would I simplify (7x^2+2xy+y^2)-(7x^2-2xy+x^2)?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
(7x^2 + 2xy + y^2) - (7x^2 - 2xy + x^2)
7x^2 + 2xy + y^2 - 7x^2 + 2xy - x^2
7x^2 - 7x^2 - x^2 + 2xy + 2xy + y^2
(7x^2 - 7x^2 - x^2) + (2xy + 2xy) + (y^2)
(-x^2) + (4xy) + (y^2)
-x^2 + 4xy + y^2
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