Question

77root30+45root2+9root15-693/21​

Answer 1

$77 \sqrt{30} + 45 \sqrt{2} + 9 \sqrt{15} - \frac{693}{21} \\ \frac{1617 \sqrt{30} + 945 \sqrt{2} + 189 \sqrt{15} - 693 }{21} \\ \frac{3(539 \sqrt{30} + 315 \sqrt{2} + 63 \sqrt{15} - 231 )}{21} \\ \frac{539 \sqrt{30} + 315 \sqrt{2} + 63 \sqrt{15} - 231}{7}$

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