$3^3-5^2+14x$

$\int\frac{\left(\ln\left(x\right)\right)^5}{x}dx$

$-12a\left(m-n+1\right)\:+\:\left(-m+n-1\right)\:+m\:\left(6m+6n+6\right)$

$1-sin^2\left(x\right)-sin\left(x\right)cos\left(x\right)cot\left(x\right)$

$\left(7x^3+12x^2-8\right)-\left(-2x^5+3x^4+x^3-3x^2+x-2\right)$

$\int\frac{3}{x^2\sqrt{x^2-9}}dx$

$y'=21+18x+21y+18xy$