Question

if
$3 \sqrt{5} + \sqrt{125} = 17.88$
then
$\sqrt{80} + 6 \sqrt{5} =$





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Answer 1

Answer:

$= > \sqrt{80} +6 \sqrt{5} \\ = > \sqrt{4 \times 4 \times 5} + 6\sqrt{5} \\ = > 4 \sqrt{5} + 6\sqrt{5} \\ = > 10\sqrt{5} \\ = >10\times 2.236 \\ = > 223.6$