$\frac{4^7}{4^0}$

$\int_{-\frac{3.1416}{2}}^{\frac{3.1416}{2}}9sin^2\left(x\right)cos^3\left(x\right)dx$

$28+56t+28w$

$8x^3+6x^8$

$\left(-13\:\:x-2\right)+-12$

$7x^2+10x+3$

$\left(2y+y^2+6\right)\left(x\right)+\frac{5}{2}y\left(2y+y^2+6\right)+\frac{5}{2}y\left(y+2\right)$