Question

2 root 2 + root 8 . Please solve it!

Answer 1

$2 \sqrt{2} \: + \sqrt{8} \\ \\ we \: know \: that \: \sqrt{8} = 2 \sqrt{2} \\ \\ so \: 2 \sqrt{2} + \sqrt{8 } = 2 \sqrt{2} + 2 \sqrt{2} \\ \\ = \sqrt{2} \: (2 + 2) \\ \\ = 4 \sqrt{2}$

Hope it helps.

Answer 2

Answer:

2√2+√8 = 4√2

Explanation:

Resolve 8 into prime factors, we get

8 = 2×2×2

Now ,

√8 = √(2×2)×2 = 2√2

according to the problem given,

Value of 2√2+√8

= 2√2+2√2

= 2 times of 2√2

= 4√2

Therefore,

2√2+√8 = 4√2

•••••