Question

simplify= √81+5√243​

Answer 1

Answer:

$\sqrt{81}+5\sqrt{243}=9+45\sqrt{3}\\=9(1+5\sqrt{3})$

Step-by-step explanation:

$\sqrt{81}+5\sqrt{243}\\=\sqrt{9\times 9}+5\sqrt{9\times 9\times 3}\\=9+5\times 9\sqrt{3}$

Therefore,

$\sqrt{81}+5\sqrt{243}=9+45\sqrt{3}$

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