Question

(ii) 9 √5 - 4√5 + √125​

Answer 1

Answer:

9√5-4√5+5√5

10√5 is answer

Answer 2

Answer:

The answer is 0.

Step-by-step explanation:

$9 \sqrt{5} - 4 \sqrt{5} + \sqrt{125}$

$9 \sqrt{5} \: \: - 4 \sqrt{5} \: \: \: \: + 5 \sqrt{5}$

$9 \sqrt{5} \: \: - 9\sqrt{5}$

$0$