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28 October, 22:17

Solve for all values of x by factoring.

X? - 48 = 1

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  1. 28 October, 22:26
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    Step-by-step explanation:

    hello:

    x²-48 = 1

    x²-48-1 = 1-1

    x²-49=0 means : x²-7²=0

    by identity : a²-b² = (a-b) (a+b)

    by factoring: (x-7) (x+7) = 0

    x-7=0 or x+7=0

    x=7 or x = - 7
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