$5x^2\left(x^2-3x+8\right)$

$4\log\left(3\right)-3\log\left(x\right)$

$\left(\frac{2x^{-3}}{xy^2}\right)^{-2}$

$\sin\left(x-\pi\right)=-\frac{\sqrt{2}}{2}$

$f\left(x\right)=4\:sen\:\left(3x^2-2x\right)$

$\left(4a^3\right)^2\left(3a^5\right)$

$\int\frac{y}{x^2}-4x^3+3ysen3xdx$