$\int_1^3\left(\sqrt{3+x^2}\right)dx$

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

$f\left(x\right)=\frac{4}{3}x^3-\frac{4}{5}x^2+\frac{4}{7}x$

$x^2+a=\left(x+4\right)\left(x+b\right)+8$

$-\frac{3}{2}+5-\frac{1}{2}$

$\left(2yz^3-4z^2\right)^3$

$\left(x-2\right)\left(x^6-2x^5+4x^4-8x^3+16x^2-42x+64\right)$