Completing the square is a method that allows you to make all quadratics factorable. Learn how to perform the final steps in the process and solve for x.

Working with complex numbers is easier than you think! In this algebra lesson, learn how to add, subtract and multiply complex and imaginary numbers.

With two easy-to-understand examples, Wiederhold's Wonderful World of Math demonstrates step-by-step how to complete the square to solve a quadratic equation.

Learning how to solve and graph quadratic inequalities is easy with three example problems and step-by-step help from Wiederhold's Wonderful World of Math.

In this algebra lesson, learn how to plot, examine, and make deductions from graphs of quadratic functions, which are in the shape of parabolas.

If two terms in a binomial are perfect squares separated by subtraction, you can factor them using the difference of perfect squares. Learn how in this lesson!

Let Wiederhold's Wonderful World of Math show you step-by-step how to solve quadratic equations by factoring and when the "a" value is equal to one.

In this step-by-step algebra lesson, learn how to solve quadratic equations by factoring when the "a" value has a coefficient greater than one.

Don't let the appearance of the quadratic formula intimidate you! Learn how to use it to solve quadratic equations in this essential algebra lesson.

Solving quadratic equations by graphing is a great way to find x and y intercepts, identify a parabola's axis of symmetry, and more. Learn how in this lesson!