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

$\lim_{x\to\frac{\pi}{2}}\left(\frac{\pi\left(\frac{\pi}{2}-x\right)\sec\left(x\right)^2\left(x-\pi\right)}{\left(x-\pi\right)\cot\left(x-\frac{\pi}{2}\right)}\right)$

$\lim_{x\to1}\left(\frac{ln\left(3x-2\right)}{x-1}\right)$

$\frac{9x^7y^5}{3x^3y}$

$\left(\left(x+1\right)^2-3\left(x+6\right)\right)$

$3\left(0\right)^2+8\left(0\right)$

$\int e^{4x^2}dx$