Here's the step by step to solve that. But I'm not good in explaining this so I hope you'll understand it.
6√8+2√50-2√32
Factor the Square Roots.
6√8 = 6√4*2
2√50 = 2√25*2
2√32 = 2√16*2
Next,
6√4*2 ( Square root of 4 is 2, times it to 6 (The whole number outside the square root ey), the answer will be) 12√2
2√25*2 ( Square root of 25 is 5, times it to 2 (The whole number outside the square root ey), the answer will be) 10√2
2√16*2 ( Square root of 16 is 4, times it to 2 (The whole number outside the square root ey), the answer will be) 8√2
Now, the equation is simplified.
12√2 + 10√2 - 8√2
The rule: PEMDAS//MDAS
Addition:
12√2 + 10√2 = 22√2
Subration:
22√2 - 8√2 = 14√2
The answer is 14√2. :) You may ask a question on the part that you didn't that clearly understand.