$\int\frac{11x^2+5x-4}{2x^3-x^2}dx$

$0.5+\frac{1}{2}$

$\frac{x^3-6x^2+8x+2}{x+3}$

$\frac{3x}{4}+\frac{5x^3}{6}+\frac{2x}{3}-\frac{3}{4}y^3+\frac{y^2}{2}+\frac{x}{3}$

$f\left(x\right)=\sqrt[4]{\left(3x^4-8\right)}^7$

$\frac{\cos\left(x\right)}{1-\sin\left(x\right)}-\frac{\cos\left(x\right)}{1+\sin\left(x\right)}=\frac{2}{\cos\left(x\right)}$

$\left(-3a-3b\right)$