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 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 ...

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 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.

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 find the maximum or the minimum of a quadratic function. We will work on two examples that take us through sample problems step-by-step for you to improve your math knowledge and skills.

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.

To solve quadratic equations that are unfactorable, you'll need to know how to use the quadratic formula, and this quiz/worksheet combo will allow you to better understand this formula.