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Factor this expression completely. y3 - 27

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  1. 3 May, 01:04
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    (y - 3) (y² + 3y + 9)

    Step-by-step explanation:

    y³ - 27 = y³ - 3³ is the difference of two cubes.

    Using the "difference of two cubes" formula, we get:

    (y - 3) (y² + 3y + 9)
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