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# If $f(x)=\frac{x+4}{x^2+ax+b}$, and f(x) has two vertical asymptotes at x=1 and x=-2, find the sum of a and b.

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If $f(x)=\frac{x+4}{x^2+ax+b}$, and f(x) has two vertical asymptotes at x=1 and x=-2, find the sum of a and b.

Dec 19, 2020

#1
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asymptope at   1 and -2

(x+4) / [(x+2)(x-1)]

(x+4)/(x^2 +x-2)    tak it from here ....

Dec 19, 2020
#2
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So,,,,, What

Guest Dec 29, 2020