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16-12-2018
Mathematics

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Expand the polynomial (3x-y)^4 by using the Binomial Theorem.

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16-12-2018

(3x-y)^4

expand the expression

(3x-y)^2x(3x-y)^2

you have to expand expressions

(9x^2-6xy+y^2)x(9x^2-6xy+y^2)

multiply what is in the parentheses.

The answer is 81x^4_108x^3y+54x12xy^3+Y^4

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