Question 860500
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Hi,
y = {{{(x^2 + 4x - 21)/(x^2 + 10x - 39) = (x+7)(x-3)/(x+ 13)(x - 3)}}}
x = 3 is the the x-coordinate of the hole
 y = 1 is the y - asymptote
 x = -13 the x - asymptote