2√5 / √3 - √7

Question

+3

424

1

please help me

Guest Sep 10, 2014

+118654

+8

Best Answer

$$\frac{2\sqrt{5}}{\sqrt3-\sqrt7}}\times \frac{\sqrt3+\sqrt7}{\sqrt3+\sqrt7}}$$

That will give you a rational denominator.

Melody Sep 11, 2014

Melody · Answer 1 · 2014-09-11T03:00:09

$$\frac{2\sqrt{5}}{\sqrt3-\sqrt7}}\times \frac{\sqrt3+\sqrt7}{\sqrt3+\sqrt7}}$$

That will give you a rational denominator.