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calculus

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Evaluate the following limit

lim x^2 + 3x - 40
x-->5 -------------
3x + 10 - x^2

  • calculus -

    (x-5)(x+8)
    -----------
    -(x-5)(x+2)

    (x+8)
    =------
    -(x+2)

    now do the limit as x ---> 5

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