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

$\left(5x^2-6\right)^2$

$\frac{\left(\left(\cos\left(x\right)\cdot\sec^2\left(x\right)\right)-\cos\left(x\right)\right)}{\tan\left(x\right)}$

$4x^2+26x+40=0$

$\sqrt{2x}+3$

$-2c+c-3c-c$

$\int\frac{\cos\left(2x-1\right)}{\sin\left(2x-1\right)}dx$