$2x-2+2$

$\frac{d}{dx}\left(\frac{x^3+1}{x^3-1}\right)^3$

$\left(5x^2-3x\right)+2\cdot\left(2x^3+3x^2+4\right)$

$e\left(y+3\right)\right)\left(y\left(2x-7\right)\right)$

$7g-9g+3g$

$\frac{b}{12\sqrt{12}}$

$\left(q+5\right)\left(q-5\right)$