$$x^2\:y+2xy=6x$$

$$\int2+\left(1+2x\right)^4dx$$

$$\int\left(\sqrt{\frac{4\sqrt{\left(2e^x\right)^{-4}}+1}{\sqrt{\left(2e^x\right)^{-4}}}}\right)dx$$

$$4x^6-16y^2$$

$$\sqrt{\sqrt[3]{64a^7b^8}}$$

$$\frac{d^9}{dx^9}\left(e^{-x^2}\right)$$

$$6\:+\:7\left(8\right)$$