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25 November, 06:20

What value is a discontinuity of x squared plus 7 x plus 1, all over x squared plus 2 x minus 15?

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  1. 25 November, 07:45
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    (x^2+7x+1) / (x^2+2x-15)

    A discontinuity, specifically a vertical asymptote, will occur when the denominator is equal to zero as division by zero is undefined.

    (x^2+2x-15)

    (x+5) (x-3)

    So you will have two of them, when x=-5 and x=3
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