$$ln\sqrt[3]{\frac{x-2}{x+2}}$$

$$2x^2-5x^2+2x-12$$

$$10x^3\cdot x$$

$$\left(\sec\left(y\right)-1\right)\cos^2\left(y\right)=\sin^2\left(y\right)$$

$$f ( x ) = 2 x - 2$$

$$a\cos\left(x\right)+y\cos\left(b\right)-z-z$$

$$5x^3-7x^2+x$$