$\int\left(\frac{x+4}{x^2+8x-20}\right)dx$

$x^2y'=\left(x+1\right)y$

$\frac{q^2}{q^6}$

$\frac{\sin\left(x\right)+\cos\left(x\right)}{\frac{1}{\cos\left(x\right)}+\frac{1}{\sin\left(x\right)}}=\frac{\sin\left(2x\right)}{2}$

$-\frac{59}{30}x+\frac{5x-1}{4}-\frac{1}{3}>-\frac{13}{10}$

$\int\frac{9}{x^2\sqrt{x^2+3}}dx$

$3x^2-2y^2+6x+4=0$