Answer: Hope this helps you!
11√2 - 5√7
Explanation:
9√2 - 3√7 + √8 - √28
I will start by factoring the 8 to be re-written as 2√2
9√2 - 3√7 + 2√2 - √28
Now using like terms the 9√2 and the 2√2 will become 11√2
11√2 - 3√7 - √28
Now I will factor the √28 to become 2√7
11√2 - 3√7 - 2√7
Now I will combine -3√7 and -2√7 and I'm left of with:
11√2 - 5√7