Question

please do question 6

Answer 1

You answer is here


$3 \sqrt{5} + - \sqrt{5} + \sqrt{180} \\ 3\sqrt{5} - \sqrt{5} + 2 \sqrt{45} \\ 2 \sqrt{5} + 2 \times 3 \sqrt{5} \\ 8 \sqrt{5} ans$
$\sqrt{54} + \sqrt{150} \\ 3 \sqrt{6} + 5 \sqrt{6} \\ 9 \sqrt{6} ans$

Answer 2

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