$\left(x+2\right)\sin\left(x^2+4x-6\right)$

$\frac{\left(x.3\right)+6}{3}-x$

$\frac{x}{9}^2+2xy+9y^2$

$-\frac{22}{2}$

$\int\left(\frac{6}{\left(\sqrt{t^2-6t+13}\right)}\right)dt$

$\int_0^1\left(\sin\left(x\right)\left(\sin\left(2x\right)\sin\left(3x\right)\right)\right)dx$

$\frac{5^3}{\left(5^{-2}\right)\:\cdot5}$