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21 March, 09:27

Factor x^3-5x^2-3x+15

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  1. 21 March, 09:43
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    Rearrange slightly like so ...

    x^3-3x-5x^2+15 now factor first and second pair of terms ...

    x (x^2-3) - 5 (x^2-3)

    (x-5) (x^2-3)

    (x-5) (x-√3) (x+√3)
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