$\int\frac{9-x}{\left(x-1\right)\left(x+3\right)}dx$

$-\left(33+7l\right)$

$y^2-2yx+x^2$

$x2+15x-34$

$\frac{dy}{dx}\left(ln\left(x\right)\right)^{ln\left(7x\right)}$

$\left(x-6y\right)-\left(3x-2y\right)$

$\int\left(\frac{\left(x\right)}{\left(1-x^2\right)^3}\right)dx$