$\lim_{x\to1}\left(\left(x-1\right)\left(ln^2\left(x-1\right)\right)\right)$

$12-\left(-7^0\right)+2^5$

$4x^5+2x^3$

$\frac{dy}{dx}=\frac{1}{3}x\left(y-2\right)^2$

$\lim_{x\to\pi}\frac{secx}{x-\pi}$

$x^{2+3x+2}$

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