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9 October, 05:29

Find a polynomial with a degree of 3 and the zeros 1, 7 & - 4 with no other zeros

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  1. 9 October, 05:55
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    x³ - 4x² - 25x + 28

    Step-by-step explanation:

    Step 1: Write out binomial linear factors

    (x - 1) (x - 7) (x + 4)

    Step 2: Expand

    (x² - 8x + 7) (x + 4)

    Step 3: Expand

    x³ - 4x² - 25x + 28
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