$-8\left(5-5n\right)=-240$

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

$\left(a^2b+2x\right)\left(a^2b+11\right)$

$\int\frac{x^2}{\left(x^3-6\right)^3}dx$

$509-980$

$x^2-x-152$

$\int\left(\frac{3cos\left(3x\right)}{\left(sin\left(3x\right)\right)^4}\right)dx$