- Questions

# calculus

f(x) = (9x^3 - 1x^2 + 8x + 4)/(-2x^2 - 4x - 2)

What is the smallest value of x at which f(x) intersects its non-vertical asymptote?

I took the slant asymptote which is -9/2x+19/2 and set it equal to the function and tried to solve it as a quadratic equation. But any of my answers I enter into my online homework are wrong apparently. Help?