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30 December, 15:02

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

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  1. 30 December, 18:07
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    (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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