Question

square root of 7 - square root of 5 / square root of 7 + square root of 5

Answer 1

\[\sqrt{7}-\sqrt{5}\div \sqrt{7}+\sqrt{5}\]

Answer 2

\[(11-2\sqrt{35})/2\]

Answer 3

not correct

Answer 4

\[\frac{\sqrt{7}-\sqrt{5}}{\sqrt{7}+\sqrt{5}}\]
\[=\frac{\sqrt{7}-\sqrt{5}}{\sqrt{7}+\sqrt{5}}\times\frac{\sqrt{7}-\sqrt{5}}{\sqrt{7}-\sqrt{5}} \]

Answer 5

\[=\frac{(\sqrt{7}-\sqrt{5})^2}{2}\]

Answer 6

sorry its 12-2sqrt35 there

Answer 7

so it is 6-sqrt35

Answer 8

\[=\frac{12-2\sqrt{35}}{2}=6-\sqrt{35}\]