$3x^2-16x+5$

$3\left(10-5\right)\left(1+1\right)$

$\int\left(\frac{1}{x^4\sqrt{x^2+4}}\right)dx$

$\left(a^6-a^3\right)^2$

$10-\left|-8-\left(4-7\right)+\left(-5-11\right)+2\right|-\left(3-9\right)$

$\frac{4x^3-10x^2+3}{x^2-2x+1}$

$\left(r^2-s\right)\left(2r^2+5s\right)$