2/7(14x-21y^2)(-5x^2-3y^2)
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i hope you understand but what is the value of x and y
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2/7(14x-21y^2)(-5x^2-3y^2)
=2/7(70x^3-52xy^2+105x^2y^2-63y^4)
=20x^3-104/7xy^2+30x^2y^2-18y^4
=2/7(70x^3-52xy^2+105x^2y^2-63y^4)
=20x^3-104/7xy^2+30x^2y^2-18y^4
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