$\:2^2+am+m^2$

$\csc\left(x\right)=\frac{\sqrt{2}}{2}$

$\lim_{x\to0}\left(\frac{2x+\sin\left(x\right)}{7x+\cos\left(x\right)}\right)$

$\left(sin\left(2x\right)-cos\left(2x\right)\right)^2=2$

$\frac{dy}{dx}=\frac{3x}{4y+1}$

$3x+3x^2-2x-4+x^2+3x^3+2x-5x-4$

$\lim_{x\to\infty}\left(\frac{3x^2+1}{\ln\left(2x^2+2\right)}\right)$