$\left(9x+6\right)\left(4x-2\right)$

$\int_2^3\left(\frac{x+2}{\left(x-1\right)\left(x^2+1\right)}\right)dx$

$3\left(x-1\right)+2\left(x-2\right)=4\left(x+2\right)$

$\frac{d}{dx}\left(\frac{1}{4}x^4lnx-\frac{1}{16}x^4\right)$

$\lim_{x\to0}\left(\frac{\tan^5\left(2x\right)}{x.\sin^3\left(3x\right)}\right)$

$17x^5-51x^4-34x$

$\frac{x^2-15x+25}{x-5}$