The quadratic formula is a formula that can solve any quadratic equation - including ones factored, but more usefully, it can solve quadratics that do not factor easily or at all.

Learn how to solve quadratic equations in just 5 minutes! Our video lesson covers its three methods including factoring and the quadratic formula, plus a quiz.

Learn what quadratic equations are used for by reviewing real-life examples and applications of quadratic functions. Find sample problems that explain this.

The vertex form of a quadratic equation is a formula used to easily identify the minimum or maximum point of a parabola, or the vertex. Learn more about the vertex form and its relationship with ...

Learn how to apply the quadratic formula, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

The proof of the quadratic formula involves starting with a quadratic equation, ax^2+bx+c=0 and then solving for x. This process involves taking the square, combining fractions, taking the square ...

Learn how to convert quadratic equations from general to vertex form, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.

Understand the meaning of the roots of an equation and how to find the roots of a quadratic equation. Also, see the formula used in finding the roots of a quadratic equation.

What is vertex of a parabola? Learn how to find the vertex of a parabola or quadratic function and how to find the coordinates of the vertex with examples.

Learn how to solve a quadratic equation with complex roots, and see examples that walk through sample problems step-by-step for you to improve your math knowledge and skills.