Question

rationalize the denominator 2/√7 - √5​

Answer 1

$= \frac{2}{ \sqrt{7} - \sqrt{5}} \\ \\ \frac{2}{ \sqrt{7} - \sqrt{5}} \times \frac{ \sqrt{7} + \sqrt{5} }{ \sqrt{7} + \sqrt{5} } \\ \\ = \frac{2 \sqrt{7} + 2 \sqrt{5} }{ {( \sqrt{7}) }^{2} - {( \sqrt{5}) }^{2} } \\ \\ = \frac{2 \sqrt{7} + 2 \sqrt{5} }{7 - 5} \\ \\ = \frac{2 \sqrt{7} + 2 \sqrt{5} }{2}$

$= \sqrt{7} + 2 \sqrt{5}$

Answer 2

Answer:

hence answervare √7+√5 are ✅ correct

for solution see picture ️