$\int\left(x^{1.8\:}+9x^{3.5}\right)dx$

$\left(-49\right)+\left(-25\right)-\left(-15\right)-\left(-81\right)$

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

$700+200+600+700$

$walfram$

$\frac{d^2}{dx^2}\cos\left(3x^4\right)\cdot\left(12x^4\right)$

$\frac{\left(-8\right)\cdot8\cdot\left(-8\right)}{\left(-8\right)\cdot\left(-8\right)}$