$\lim_{x\to0}\left(\frac{e^x-\left(1-20x\right)}{x}\right)$

$9x^2-4x+4$

$\lim_{x\to0}\left(\frac{ln\left(1+\frac{10}{x}\right)}{\frac{1}{5x}}\right)$

$\int x^2sin\left(\frac{1}{3}x\right)dx$

$\left(12.5\cdot\sqrt{2}\right)^2$

$\int_1^2\frac{\left(2x+2\right)\left(x-2\right)}{x}dx$

$4p^4+7p^4-3p^4$