$8x^2-3x+2$

$xy\:dx-\left(x^2+3y^2\right)dy=0$

$\sqrt[3]{9\cdot\:\sqrt[3]{9\cdot\:\sqrt[3]{9\cdot\:\sqrt[3]{9\cdot\:\sqrt[3]{9\cdot\:\sqrt[3]{27}}}}}}$

$\frac{2x^3y^{-2}}{2x^2}$

$6:\left(+2\right)+5.\:\left(-3\right)-12:\left(-4\right)$

$9x^2-11x+4$

$\int\left(\frac{5}{x^6}\sin\left(\frac{1}{x^5}-1\right)\right)dx$