Question

root 20+ root 45+root 5​

Answer 1

Answer:

$6 \sqrt{5}$

Step-by-step explanation:

$\sqrt{20} + \sqrt{45} + \sqrt{5} \\ \\ \sqrt{5 \times 4} + \sqrt{9 \times 5} + \sqrt{5} \\ \\ 2 \sqrt{5} + 3 \sqrt{5} + \sqrt{5} \\ \\ 6 \sqrt{5}$

Answer 2

$\sqrt{20} + \sqrt{45} + \sqrt{5} \\ \\ = \sqrt{4 \times 5} + \sqrt{9 \times 5} + \sqrt{5 \times 1} \\ \\ (taking \: \sqrt{5} common) \\ \\ = \sqrt{5} ( \: \sqrt{4} + \sqrt{9} + \sqrt{1} \: ) \\ \\ = \sqrt{5} (2 + 3 + 1) \\ \\ = 6 \sqrt{5}$

Hence your answer on simplifying will be 6 √5