User:Dennis/Related/My sandbox

$$X = \frac{ \left( 5*3-12 \right)^2-1} {4}$$

$$X = \frac{\sqrt{2}} {4}$$ = 8

$$X = \frac{2 \left(3X^2-5 \right)-2} {6}$$

$$\sqrt{\frac{2 \left(3X^2-5 \right)-2} {6}}$$