Worksheet: Cube of a Difference

Instructions

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Question

Answer

`(4x - y)^3`

`64x^3 - 48x^2y + 12xy^2 - y^3`

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`(5x - 4b)^3`

`125a^3 - 300a^2b + 240ab^2 - 64b^2`

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`(a/3 + b)^3`

`(a^3)/27 + (a^2b)/3 + ab^2 + b^3`

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`(x/2 + 1/y)^3`

`(x^3)/8 + 1/(y^3) + (3x)/(2y^2) + (3x^2)/(4y)`

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`(3x - 2y)^3`

`27x^3 - 54x^2y + 36xy^2 - 8y^3`

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`(1 - x)^3`

`1 - 3x + 3x^2- x^3`

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`(y - 2)^3`

`y^3 - 6y^2 + 12y - 8`

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`(a/3 + 2/b)^3`

`(a^3)/27 + 8/(b^3) + (4a)/(b^2) + (2a^2)/(3b)`

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