Could someone me with this question and possibly explain? i'm have trouble with the ones like these

It is -6/10 and 6/10, just take the square roots of the top and bottom and make it a fraction, square root of 36 is 6 and 100 is 10 so you get 6/10 and since 2 negative make a positive, you can have the negative sign next to the whole fraction, not the number though. 

66

Step-by-step explanation:

66