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31 October, 01:45

What is completely factored form of d^4-81

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  1. 31 October, 01:57
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    (d - 3) (d + 3) (d² + 9)

    Step-by-step explanation:

    d⁴ - 81

    Factor using difference of squares.

    (d² - 9) (d² + 9)

    Factor using difference of squares again.

    (d - 3) (d + 3) (d² + 9)
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