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18 August, 23:30

Five less than twice what negative number squared is 157?

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  1. 18 August, 23:43
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    Five less than twice what negative number squared is 157 < - put into an expression

    -5 + 2 (-x^2) = 157

    Now simplify:

    -5 + - 2x^2 = 157

    -2x^2 = 162

    -2x^2 - 162 = 0

    2x^2 + 162 = 0

    x^2 + 81 = 0
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