__Skill Sheet__

__Sums and Differences of Cubes__

Example of sum of cubes:

(x

^{3}+216) …… a is x and b is 6……. so, you can factor this into (x+6)(x

^{2}-6x+36)

Example of difference of cubes:

(8x

^{3}+27)…….a is 2x and b is 3…..so, this can be factored into (2x-3)(4x

^{2}+6x+9)

[TIP: It would be great to have the formulas for sum and differences of cubes in your mental mathematical toolbox!]

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