If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .

Set the first factor equal to .

Simplify each term.

Apply the distributive property.

Multiply by .

Multiply .

Multiply by .

Multiply by .

Move all terms not containing to the right side of the equation.

Add to both sides of the equation.

Subtract from both sides of the equation.

Set the next factor equal to .

Simplify each term.

Apply the distributive property.

Multiply by .

Move all terms not containing to the right side of the equation.

Add to both sides of the equation.

Add to both sides of the equation.

The final solution is all the values that make true.

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Solve using the Square Root Property (x-(4- square root of 21))(x-(4+ square root of 21))=0