How much is -x^2+7y^2-3xy less than 2x^2-y^2+Xy
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I KNOW BUD
Step-by-step explanation:
2x^2-y^2+xy-[-x^2+7y^2-3xy]
2x^2-y^2+xy+x^2+7y^2-3xy
2x^2+x^2-y^2+7y^2+xy-3xy
3x^2+6y^2-2xy
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