Solve the quadratic equation by the appropriate method. x^2-81=0

Question

Solve the quadratic equation by the appropriate method.

x^2-81=0

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bonexptip 3 years 2021-07-28T05:57:16+00:00 1 Answers 15 views 0

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  1. Philomena
    0
    2021-07-28T05:59:07+00:00
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    Answer:

    x*x-81=0

    x*x=81

    x=√81

    x=9

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