$am+an$

$\int\frac{3x^2+5}{x^3+5x+2}dx$

$2^8\cdot2^2$

$6x^7-30x^3+2x^2$

$\lim_{p\to1}\left(p^2-p+1\right)^{\frac{1}{p-1}}$

$\lim_{x\to\infty}\left(\frac{\left(e^x-x-1\right)}{x^2}\right)$

$\sec\left(x\right)+\sin\left(x\right)^2\cdot\cos\left(x\right)+\cos\left(x\right)^3$