 ## Algebra A Math: Solving Quadratic Equations

This topic teaches the student how to solve quadratic equations. This series of four lessons introduces the zero product principle. Then, the student learns how to solve quadratic equations by using the zero product principle and using factoring.

This series allows the student to see the reasoning behind factoring.

### Zero Product Principle

This lesson teaches the student the zero product principle. The student sees that if the product of two numbers is zero, then at least one factor is zero. The examples in this lesson shows how to solve already factored quadratic equations using the zero product principle.

### Solving Quadratic Equations by Factoring I

In this lesson, the student learns how to solve quadratic equations by factoring. The lesson explains that in order to solve a quadratic equation, the first step is to factor the quadratic equation and the second step is to use the zero product principle in order to solve for x.

### Solving Quadratic Equations by Factoring II

This lesson introduces the student to solving quadratic equations when there is an additional step in order to set the quadratic equation equal to zero.

### Solving Quadratic Equations by Factoring III

This lesson shows the student how to solve examples that require multiple steps before they get the quadratic equation equal to zero.

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