Move to the left side of the equation by subtracting it from both sides.

Use the quadratic formula to find the solutions.

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

Simplify the numerator.

Raising to any positive power yields .

Multiply by .

Multiply by .

Add and .

Rewrite as .

Rewrite as .

Rewrite as .

Pull terms out from under the radical.

Raise to the power of .

Multiply by .

Simplify .

Find All Complex Solutions x^2=4i