Subtract from both sides of the equation.

Use the quadratic formula to find the solutions.

Substitute the values , , and into the quadratic formula and solve for .

Simplify the numerator.

Raise to the power of .

Multiply by .

Multiply by .

Add and .

Multiply by .

The result can be shown in multiple forms.

Exact Form:

Decimal Form:

Solve Using the Quadratic Formula 4a^2-8=a