$\int x\left(1+3y-y^2\right)dy$

$\int\left(x^3-4x^2+5x-1\right)cos\left(3x\right)dx$

$\int\left(\frac{\sqrt{16+2x}}{x}\right)dx$

$\frac{m^3n^2-5m^2n^4-4mn^5}{m^2n^2}$

$\left(\frac{c^6}{a}\right)^3$

$y^3=4y$

$\cot\left(x\right)\cdot\sec\left(x\right)\cdot\sin\left(x\right)=\sin\left(x\right)$