6-819

Rewrite 81 as 92.

6-929

Pull terms out from under the radical, assuming positive real numbers.

6-1⋅99

Multiply -1 by 9.

6-99

Subtract 9 from 6.

-39

-39

Cancel the common factor of -3 and 9.

Factor 3 out of -3.

3(-1)9

Cancel the common factors.

Factor 3 out of 9.

3⋅-13⋅3

Cancel the common factor.

3⋅-13⋅3

Rewrite the expression.

-13

-13

-13

Move the negative in front of the fraction.

-13

-13

The result can be shown in multiple forms.

Exact Form:

-13

Decimal Form:

-0.3‾

Simplify (6- square root of 81)/9