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26 February, 10:13

Factor 7x^3+28x^2+21x

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  1. 26 February, 10:42
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    7x (x + 1) (x + 3)

    Step-by-step explanation:

    7x³ + 28x² + 21x

    7x (x² + 4x + 3)

    7x [ x² + 1x + 3x + 3 ]

    7x [ x (x + 1) + 3 (x + 1) ]

    7x (x + 1) (x + 3)
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