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28 January, 17:19

Solve for x. x^2-9=16

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  1. 28 January, 17:36
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    x=5 or x=-5

    Step-by-step explanation:

    either one of those

    x2-9=16

    Step 1: Add 9 to both sides.

    x2-9+9=16+9

    x2=25

    Step 2: Take square root.

    x=±25

    x=5 or x=-5
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