$\int cos\left(13-11x\right)dx$

$\left(\frac{2\left(x+1\right)^5}{5}\right)$

$\left(\frac{2x^{\frac{2}{3}}}{y^{\frac{1}{2}}}\right)^2\left(\frac{3x^{\frac{5}{6}}}{y^{-\frac{1}{3}}}\right)$

$8mn+24m^2-16y$

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

$11 x ^ { 4 } - 11 x ^ { 5 }$

$\left(9+2y\right)^2$