$6x^2-8x-2+3x+4$

$8=\frac{a-36}{5}$

$\left(x+2\right)-\left(2x+1\right)$

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

$-\frac{\frac{5}{2}}{-\frac{5}{6}}$

$\int6x\cdot\cos\left(\frac{x}{3}\right)dx$

$\lim_{x\to\frac{3.14}{2}}\left(\frac{\sin^2\left(x\right)+\sin\left(x-2\right)}{\sin\left(x-1\right)}\right)$