algebra 2

help please!! state the possible rational zeros for each function. then find all zeros. y=x^3-13x^2-x+13 show all the step please .thanks

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  1. look at the grouping:

    x^2(x-13) - (x-13)
    (x^2-1)(x-13)
    (x-1)(x+1)(x-13)

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  2. i know

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