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 …

The quadratic formula is arguably one of the most well-known and important formulas in math. In this lesson, look at the definition of the quadratic formula, its standard form, how to plug in your ...

The quadratic formula is x = -b +/- sqrt (b^2 - 4ac) / 2a. It is a very important formula in mathematics which can be used to find the real (or complex) solutions to any quadratic equation.

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.

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 how to factor quadratic equations. See factoring quadratic polynomials, factoring quadratics practice, and quadratic equation practice problems.

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.

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

Knowing how to find the vertex of a quadratic function will help us to sketch the graph of a quadratic function having only seen its equation or given a few points.

Discover the three methods of solving quadratic equations. See how to solve quadratic equations by factoring, the quadratic formula, and the square root method.