SOLUTION: Could someone help me with this problem. Thanks so much!This problem has really puzzled me. Any help is appreciated!I am not sure what type of problem this is, so that doesn't help

Question 615772: Could someone help me with this problem. Thanks so much!This problem has really puzzled me. Any help is appreciated!I am not sure what type of problem this is, so that doesn't help me either. Sorry for lack of information.
Add
(3x^2-5xy+y^2)+(-8x^2-2xy-y^2)+(x^2+xy-8Y^2)

Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Add
(3x^2-5xy+y^2)+(-8x^2-2xy-y^2)+(x^2+xy-8Y^2)
:
remove the brackets and you have
3x^2-5xy+y^2-8x^2-2xy-y^2+x^2+xy-8Y^2
:
Group like terms
3x^2 - 8x^2 + x^2 + y^2 - y^2 - 8y^2 - 5xy - 2xy + xy
:
combine like terms
-4x^2 - y^2 - 6xy
or
-4x^2 - 6xy - y^2; is the standard form
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