$\left(-1.001\right)^6-\left(-1.001\right)^5-\left(-1.001\right)^4+\left(-1.001\right)^3-\left(-1.001\right)^2+-1.001+1$

$\sqrt{8}-\sqrt{8}$

$\:120-5.5$

$\frac{2x^5+6x^4+2x^2-33x+10}{x-4}$

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

$3\left(2a+6\right)-4a\left(b+c\right)-2c\left(a-b\right)$

$-\frac{8\left(2-5\right)}{\left(-4\right)}$