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20 August, 12:32

Find the value of this expression if x=-7. x^2 - 1 / x+4

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  1. 20 August, 15:41
    0
    -16

    Step-by-step explanation:

    x^2 - 1 / x+4

    By putting the value of x in the expression as x = - 7

    = (-7) ^2 - 1 / - 7 + 4

    = (+49) - 1 / - 3

    = 48/-3

    = - 16
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