Learn how to solve quadratic equations using the quadratic formula , a closed-form expression that describes the roots of a quadratic function. Explore different methods of deriving the formula , such as completing the square, substitution, and Lagrange resolvents. Learn how to solve any quadratic equation using the Quadratic Formula ! Discover the sure-fire way of solving equations of the form ax^2+bx+c=0 where "a" does not equal to zero. Solve quadratic equations using the quadratic formula with this online calculator. Enter the coefficients a, b and c or a quadratic expression and get the real and complex root solutions with work. Learn how to use the quadratic formula to find the roots of quadratic equations in standard form. See the steps, derivation, graphical method, and examples of quadratic equations with real or imaginary solutions.
