$\frac{dy}{dx}y=-5$

$\sec\left(x\right)^2\cdot\csc\left(x\right)^2=\left(\tan\left(x\right)+\cot\left(x\right)\right)^2$

$4y'-6e^xy=0$

$\left(2-x^2-y^2\right)^2$

$\frac{6\sin\left(m\right)+4\tan\left(m\right)}{\tan\left(m\right)}$

$\left(ab+5\right)\left(ab-3\right)$

$x^2-13x+140=0$