Not sure if this is the correct section, but in the following function, $\displaystyle \displaystyle f(x)=\frac{2x^5-3x^2+5}{3x^4+5x-4}$, is the oblique asymptote $\displaystyle \displaystyle y=\frac{2}{3}x$? I ask because the answer in the book is different, but I can't see my mistake.