-1+1=0. So your answer is -1 and 1
1 1/6 = 7/5
2 1/2 = 5/2
1 1/2 = 3/2
This is what I got hope I'm correct.
Answer: 
Step-by-step explanation:

88 can be rewritten as 8 x 10 and 8 can be rewritten as
making a 2 come out of the root.

10 can be rewritten as 2 x 5.

2*2 can also be rewritten as
making a 2 come out of the root.

We can't keep simplifying the root.