$12+4y+5x-y+8$

$\int3tsec^2\left(t\right)dt$

$3\left(\frac{3}{5}p^{2}-\frac{1}{6}k^{3}\right)\cdot\left(\frac{3}{5}p^{2}+\frac{1}{6}k^{3}\right)$

$\frac{dy}{dx}=6ysin\left(x\right)$

$\left(4x^3y^6\right)\left(-7x^4\right)$

$x\frac{dy}{dx}-x^2y-2x^2y^{\frac{1}{2}}=0$

$+3000-2020$