1 + (2a + √a - 1/1 - a)

$1+(\frac{2a+\sqrt{a}-1}{1-a}$

 - $\frac{2a-\sqrt{a-\sqrt{a}+a}}{1-a\sqrt{a}}$)×$\frac{a-\sqrt{a}}{2\sqrt{a}-1}$