If f(x) = (x + 4)/(x^2 + ax + b) and f(x) has two vertical asymptotes at x=1 and x=2, then find the sum of a and b.
Hello Guest!
x^2 + ax + b = 0
1^2 + a*1+ b = 0 a + b = -1
2^2 + a*2 + b = 0 2a + b = 4
a = -3 b = 2 a + b = -1
!
!
