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

$2\left(2x^2+2x-24\right)$

$\frac{x^4-3x^2+6}{x\left(x^2-16\right)}$

$16x^2+8x+2k$

$3+2ln\left(x\right)=7$

$\int\left(\left(1+tan\left(x\right)\right)^5sec^2\left(x\right)\right)dx$

$\lim_{x\to4}\left(\frac{5x-3x^{-1}-1}{x^2+2x-24}\right)$