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

$-5x+7>-10x-8$

$\left(h-k\right)\left(h+k\right)$

$\frac{csc\left(x\right)}{tan\left(x\right)}.sin\left(x\right).cot\left(x\right)$

$\int\frac{10}{x\cdot\sqrt{81x^2-49}}$

$\int\frac{x^4+8}{x^3}dx$

$\frac{d}{dx}\left(x^x\right)\left(x+4\right)^4\left(3x-2\right)^3$