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March 29, 2017

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lim x^2+2x-8/x^2-4
x->2

  • Calculus - ,

    factor numerator; (x+4)(x-2)
    factor denominator; (x-2)(x+2)

    reduce the fraction

    lim (x+4)/(x+2) as x>2 = 6/4

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