25 5 but the 25 -5 as well because -5-5 is 25 also. About quadratic equations Quadratic equations have an x2 term and can be rewritten to have the form. It will find both the real and the imaginary complex roots.
Use Square Root Property.
After applying the square root property you have two linear equations that each can be solved. Use Square Root Property. The calculator will solve the quadratic equation step by step either by completing the square or using the quadratic formula. You can solve quadratic equations by completing the square.