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 .

Apply the distributive property.

Multiply by .

Multiply by .

Subtract from .

Add and .

Rewrite as .

Factor out of .

Rewrite as .

Rewrite as .

Add parentheses.

Pull terms out from under the radical.

Raise to the power of .

Multiply by .

Simplify .

Simplify the numerator.

Raise to the power of .

Multiply by .

Apply the distributive property.

Multiply by .

Multiply by .

Subtract from .

Add and .

Rewrite as .

Factor out of .

Rewrite as .

Rewrite as .

Add parentheses.

Pull terms out from under the radical.

Raise to the power of .

Multiply by .

Simplify .

Change the to .

Simplify the numerator.

Raise to the power of .

Multiply by .

Apply the distributive property.

Multiply by .

Multiply by .

Subtract from .

Add and .

Rewrite as .

Factor out of .

Rewrite as .

Rewrite as .

Add parentheses.

Pull terms out from under the radical.

Raise to the power of .

Multiply by .

Simplify .

Change the to .

The final answer is the combination of both solutions.

Find the Standard Form of the Parabola y^2-8y+4x+16=0