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

$\lim_{x\to0}\left(\frac{1-x\cos\left(x\right)}{sin^23x}\right)$

$6\sqrt[5]{x^3y^2}+5\sqrt[15]{x^9y^6}$

$\int\frac{\left(4x-1\right)}{x\left(x^2+4\right)\left(x-5\right)}dx$

$7.5+8.0+8+10+5$

$\left(\sqrt{7}+4\right)\left(\sqrt{7}-4\right)$

$\frac{5x^4-3x^3-17x^2+23x+10}{x-2}$