Question

help!
4 divided by 4 + radical 7
and 3 divided by radical 5 - 2

Answer 1

\[\frac{ 4 }{ 4 + \sqrt{7} }\]

Answer 2

\[\frac{ 4 }{ 4 + \sqrt{7} } (\frac{ 4 - \sqrt{7} }{ 4 - \sqrt{7} })\]

Answer 3

\[\frac{ 4(4-\sqrt{7}) }{ 4^{2} + 4\sqrt{7} - 4\sqrt{7} - \sqrt{7}^{2} }\]

Answer 4

\[\frac{ 16 - 4\sqrt{7} }{ 16 - 7 } = \frac{ 16 - 4\sqrt{7} }{ 9 }\]

Answer 5

thanks!