$$\left(3-5g\right)^3$$

$$\frac{d}{dx}8x^2+y^2=2$$

$$12y^2+28y+15$$

$$\left(3y-x\right)^2$$

$$-\frac{1}{3}x\:+\frac{1}{2}y\:+\frac{3}{8}-3y+2x-\frac{1}{6}y-\frac{3}{4}x-\frac{1}{2}$$

$$\frac{x^2+y^2-2xy}{\left(x+y\right)\left(x-y\right)}$$