Answer:
1 and -4
Step-by-step explanation:
The vertical asymptote of a function is gotten by equating the denominator of such function to zero.
Given
f(x) = 4x+8/x^2+3x-4
The vertical asymptotes is expressed as;
x^2+3x-4 = 0
Factorize
x^2+4x-x-4 = 0
x(x+4) -1 (x+4) = 0
(x-1)(x+4) = 0
x-1 = 0 and x+4 = 0
x = 1 and x = -4
Hence the vertical asymptotes of the function are 1 and -4
