Question

Simplify,4√5-2√45+√125 ​

Answer 1

Explanation:

$\sqrt{5} (4 - 2 \sqrt{9} + \sqrt{25} ) \\ \sqrt{5} (4 - 2.3 + 5) \\ \sqrt{5(} 4 - 6 + 5) \\ \\ \sqrt{5} (9 - 6) \\ \sqrt{5} (3) \\ 3 \s \sqrt{5}$

Ans 3 root5