$\frac{d}{dx}\left(x^{x+2}\right)\left(e^x\right)\left(ln\left(ex\right)\right)$

$\frac{\cos\left(d\right)\sec\left(d\right)}{\tan\left(d\right)}=\cot\left(d\right)$

$\int\sqrt[3]{x-1}-2x^2\sqrt[3]{x-1}dx$

$5x^2-7x-6-9x^2+3x-4$

$2a+4-3b+c-7a-b+2c$

$- x - 20 - 30 + 40$

$\int_{\pi}^{2\pi}sen\left(3x\right)dx$