$\frac{x^3y^3}{2xy}$

$\int\left(1+7x\right)^7dx$

$\int\left(sinx\left(cos^2x+1\right)\right)dx$

$\left(\frac{1}{4}x^4-\frac{7}{6}x^3+31x^2+12+x\right)+\left(\frac{1}{6}-\frac{2}{3}x^2\right)$

$\int_0^{\frac{\pi}{6}}\left(10\sec^3\left(x\right)\right)dx$

$18x^3+6x^2y+4xy^2-10xy$

$4a^3bx-4bx$