Factor this polynomial completely. x^2-81

Question

Factor this polynomial completely.
x^2-81

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Eliza 3 weeks 2021-09-26T20:31:50+00:00 2 Answers 0

Answers ( )

    0
    2021-09-26T20:33:09+00:00

    The answer to your question is (x+9)(x-9)

    Step-by-step explanation:

    Rewrite 81 as 92

    x2−92

    Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)

    where a=x and b=9

    (x+9)(x−9)

    Hope this helped you out:)

    0
    2021-09-26T20:33:21+00:00

    Answer:

    a=x and b=9

    (x+9)(x−9)

    Explanation:

    Since both terms are perfect squares, factor using the difference of squares formula, a2−b2=(a+b)(a−b)

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45:7+7-4:2-5:5*4+35:2 =? ( )