Math, asked by akshatmalik1523, 1 year ago

Value of 8x^3+y^3-18xy if 2x+y=-3

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Answered by Anonymous

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Answer:

Value of 8x^3+y^3-18xy if 2x+y=-3

given Value 2x+y=-3 taking cube

(2x+y)^3=-27

8x^3+y^3+12x^y+6xy^2

=8x^3+y^3+6xy(2x+y)=-27

=8x^3+y^3+6xy(-3)=-27

=8x^3+y^3+-18xy=-27

=8x^3+y^3+-18xy-27=0

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