Take the square root of each side of the equation to set up the solution for

Remove the perfect root factor under the radical to solve for .

First, use the positive value of the to find the first solution.

Add to both sides of the equation.

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Divide by .

Next, use the negative value of the to find the second solution.

Add to both sides of the equation.

Divide each term by and simplify.

Divide each term in by .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Simplify each term.

Move the negative in front of the fraction.

Divide by .

The complete solution is the result of both the positive and negative portions of the solution.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Solve Using the Square Root Property (3x-6)^2=21