$\frac{3dy}{dx}+1=x^3$

$\int x\left(\frac{x^3}{\sqrt{1+x^2}}\right)dx$

$\left(\frac{w^7}{w^4}\right)\left(\frac{5}{12}\right)$

$\frac{5c^{-1}}{4\left(c^{-1}\right)^2}$

$\int\frac{\left(3-5x\right)}{\left(x^3-6x^2\right)}dx$

$\int3x\left(2x^2+1\right)^3dx$

$\lim_{n\to\infty}\left(\frac{e^n}{e^n+n}\right)$