Evaluate
3x^{2}+6xy+4y^{2}
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3x^{2}+6xy+4y^{2}
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5x^{2}+3xy+7y^{2}-2x^{2}+3xy-3y^{2}
To find the opposite of 2x^{2}-3xy+3y^{2}, find the opposite of each term.
3x^{2}+3xy+7y^{2}+3xy-3y^{2}
Combine 5x^{2} and -2x^{2} to get 3x^{2}.
3x^{2}+6xy+7y^{2}-3y^{2}
Combine 3xy and 3xy to get 6xy.
3x^{2}+6xy+4y^{2}
Combine 7y^{2} and -3y^{2} to get 4y^{2}.
5x^{2}+3xy+7y^{2}-2x^{2}+3xy-3y^{2}
To find the opposite of 2x^{2}-3xy+3y^{2}, find the opposite of each term.
3x^{2}+3xy+7y^{2}+3xy-3y^{2}
Combine 5x^{2} and -2x^{2} to get 3x^{2}.
3x^{2}+6xy+7y^{2}-3y^{2}
Combine 3xy and 3xy to get 6xy.
3x^{2}+6xy+4y^{2}
Combine 7y^{2} and -3y^{2} to get 4y^{2}.
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