Math, asked by MrzShizuka360, 8 hours ago

answer of this question is
9x²y - 8xy²

please give me explained answer.!

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Answered by bagkakali

1

Answer:

9x^2y-8xy^2

=xy(9x-8y)

(3x^2y-4xy+7y^2)-(-3x^2+4xy-7y^2)

=(3x^2-4xy+7y^2)+(3x^2-4xy+7y^2)

=2(3x^2-4xy+7y^2)

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