I NEED HELP WITH ALGEBRA 1 QUADRATIC EQUATIONS AND FUNCTIONS PLEASE!

okay i am sooo confused on this question....
here are the instructions...
Use a calculator to evaluate the expression. Round the results to the nearest hundredth. (i hate rounding)

here is the problem

8 ± 3 √6
________
-1

help? i will give 5 stars, and love u forever!

your problem means

(8 + 3 sqrt(6))/ - 1

(8 + 3(2.45))/ - 1

(8 + 7.35)/ - 1

15.35/ - 1

- 15.35

or

(8 - 3 sqrt(6))/ - 1

(8 - 3(2.45))/ - 1

(8 - 7.35)/ - 1
.65/ - 1

- .65

The problem must be worked out with addition and subtraction in place of the ± symbol.

So:

8 + 3 √6
___________ = -15.35
-1

8 - 3 √6
___________ = -.65
-1

Who told you its quadratic equation? Its a quadratic surd.
8 + 3 √6 = 15.34846923 ~15.35.
8 - 3 √6= 0.65152~0.65

What is that -1 under the line for?