# Easy start to 2015!

Algebra Level 3

If $$\frac{1}{\sqrt{2} + \sqrt{0} + \sqrt{1} + \sqrt{5}}$$ can be written as $$\frac{x - \sqrt{y}(z + 1)}{2} + \sqrt{2}$$

Then find $$x - y + {z}^{2}$$

×