(4xy-8x^2-y^2)-(3xy+7x^2+8y^2). Subtract the given . Answer correctly .
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(4xy-8x^2-y^2)-(3xy+7x^2+8y^2). Subtract the given . Answer correctly .
(4xy-8x^2-y^2)-(3xy+7x^2+8y^2). Subtract the given . Answer correctly .
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Answer:
[tex] = (4xy - 8 {x}^{2} - {y}^{2} ) - (3xy + 7 {x}^{2} + 8 {y}^{2} ) \\ = 4xy - 8 {x}^{2} - {y}^{2} - 3xy - 7 {x}^{2} - 8 {y}^{2} \\ = xy - 15 {x}^{2} - 9 {y}^{2} \\ = - (15 {x}^{2} - xy + 9 {y}^{2} )[/tex]