$\left(x^2+\right)\frac{dy}{dx}=2$

$\left(\frac{dy}{dx}\right)^2=\frac{4}{x^2}$

$\frac{\left(3x^2-2x\right)}{\left(3x+2\right)}<-2$

$\frac{10^6}{10^9}$

$\int^6\left(x\cdot\cos\left(2x^2+3\right)\right)dx$

$\int\left(4x^7+7x-9\right)\left(28x^6+7\right)\:dt$

$x+2+-4x^2+16x+6$