$+\left(+3\right)-\left(6+5\right)$

$\left(x^2+1\right)y'-xe^{2y}=0$

$\frac{d}{dx}6^{2x+1}$

$\lim_{x\to0}\left(\frac{6^x-2^x}{\sin\left(x\right)}\right)$

$\left(x+1\right)\left(x+3\right)\left(x+2\right)\left(x+4\right)-\left(x^2+5x+5\right)^2$

$\frac{dx}{x^2}=dy$

$\frac{\left(\left(\sin\left(x\right)^5\right)\left(x^4+3x^3\right)^4\right)}{\left(\cos\left(x\right)^2\right)}$