$\lim_{x\to0}\left(\frac{2\sin x-\sin2x}{x\cos x}\right)$

$\frac{9a^2-4}{3a-2}$

$\left(\frac{2x-3y}{y\:\:\:\:x}\right)^3$

$f\left(x\right)=\sqrt[3]{\frac{\left(3x+2\right)^2}{\left(2-x^2\right)^5}}$

$-25-\left(5-8-10\right)$

$\int3e^{3x}dy$

$\lim_{x\to0}\left(2\left(1+3x\right)\right)$