$9x^2+3x+25=64$

$4m^2-32m+64$

$\left(g^6\right)^0$

$\lim_{x\to0}\left(\frac{mcos\left(x\right)-n\cos\left(x\right)}{x^2}\right)$

$\frac{\sec y}{\tan y+\cot y}=\sin y$

$\lim\:_{x\to\:-\infty\:}\left(\frac{x}{\sqrt{x^2+2}}\right)+\lim\:_{x\to\:+\infty\:}\left(\frac{x}{5+x^{\frac{5}{2}}}\right)$

$\frac{dy}{dx}-\frac{y}{x}=x^2\sin\left(2x\right)$