SOLUTION: I need help we simplifying {{{ (2x-y)^4 }}}

Question 895525: I need help we simplifying
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
(2x-y)^4
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= (2x)^4 + 4C3*(2x)^3(-y) + 4C2*(2x)^2(-y)^2 + 4C1*(2x)(-y)^3 + 4C0(2x)^0(-y)^4
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= 16x^4 * 4*8x^3(-y) + 6*4x^2(y^2) + 4(2x)(-y^3) + (y^4
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= 16x^4 - 32x^3y + 24x^2y^2 - 8xy^3 + y^4
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Cheers,
Stan H.
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