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7 July, 05:10

Which number line represents all of the values of x for the equation x2 = 100

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  1. 7 July, 05:11
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    x^2 = 100 ... by taking the square root of both sides, this eliminates the ^2

    x = (+-) sqrt 100

    x = (+-) 10

    so the values of x are - 10 and 10
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