Question

GUYS PLZ PLZ HELP ME...FAST....​

Answer 1

$\sqrt{ \frac{ \sqrt{30} + \sqrt{21} }{ \sqrt{30} - \sqrt{21} } } \\ = > \sqrt{ \frac{( { \sqrt{30} + \sqrt{21}) }^{2} }{ { \sqrt{30} }^{2} - { \sqrt{21} }^{2} } } \\ = > \sqrt{ \frac{30 + 21 + 2 \sqrt{630} }{30 - 21} } \\ = > \sqrt{ \frac{51 + 2 \sqrt{630} }{21} } \\ = > \sqrt{ \frac{51 + 6 \sqrt{70} }{3 \times 7} } \\ = > \sqrt{ \frac{3(17 + 2 \sqrt{70)} }{3 \times 7} } \\ = > \sqrt{ \frac{17 + \sqrt{70} }{7} }$

$\bold{so \: the \: right \: answer \: is \: \sqrt{ \frac{17 + \sqrt{70} }{7} } }$

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Answer 2

I hope this answer will help u have a nice day

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