$\int_{-1.042}^{0.192}\left(-3x^2-5x+11\right)-\left(7x^2+3.5x+9\right)dx$

$\left(\frac{1}{4}x\right)\left(-\frac{10}{3}xy\right)$

$\int2x^3\left(x^4+3\right)^3\:dx$

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

$\frac{d^2}{dx^2}\left(-\cot\left(x\right)\right)$

$-\frac{4x^2}{28x^9}$

$-5.47\cdot10^8$