Question

give step by step explanation​

Answer 1

Answer:

3) 6

Step-by-step explanation:

first substitue the values:

$\sqrt{3 \sqrt{64} + \sqrt{144} }$

calculate roots of 64 and 144:

$\sqrt{64} = 8$

$\sqrt{144} = 12$

then,

multiply 8 and 3

$\sqrt{24 + 12}$

then root of 36

$\sqrt{36}$

6