Question

simplify
$9 \sqrt{5} \: - \: 3 \sqrt{5} \: + \: \sqrt{125}$

Answer 1

$\underline{\large\bf{\mathfrak{Hello!}}}$

$= > 9 \sqrt{5} - 3 \sqrt{5} + \sqrt{125} \\ \\ ( \sqrt{125 } = 5 \sqrt{5} ) \\ \\ = > 9 \sqrt{5} - 3 \sqrt{5} + 5 \sqrt{5} \\ \\ = > 9 \sqrt{5} + 2 \sqrt{5} \\ \\ = > 11 \sqrt{5}$

$\boxed{ 11 \sqrt{5} }$

$\bf{\mathfrak{Hope \: this \: helps...:)}}$