$\left(6y^2-2xy\right)\frac{dy}{dx}=12x^2+y^2$

$50xy^2-4x^2$

$\lim_{x\to\infty}\left(\frac{x^2-4}{x-1}-1\cdot x\right)$

$\int\left(3x^5\sqrt{x^2-1}\right)dx$

$\int\left(\frac{6sec\left(x\right)tan\left(x\right)}{\sqrt{9sec^2\left(x\right)-9}}\right)dx$

$g=3x+4,5y$

$\frac{28x^{2}+31x-5}{4x+5}$