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Home » Quadratic Equations

# Solving a Quadratic Equation

## Introduction to Quadratic Equations

## What is a Quadratic Equation?

## Which of the Following Equations are Quadratic?

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This unit is an introductory unit to Quadratic Equations. We will study square roots, the Pythagorean Theorem and solving simple quadratic equations using a variety of methods.

This unit is designed to teach you the basic principles for Quadratic Equations, that will allow you to be more successful in Algebra 2.

The Quadratics Unit consists of the following lessons. Click on the unit that interests you or follow along in order for a brief introduction to quadratics.

- Definition of Quadratic Equations - Learn how to identify an equation as a quadratic equation.

- Square Roots - In order to solve quadratic equations, you must be able to take the square root of a number. Review square roots and how to calculate square roots.

- Simple Quadratic Equations - We'll start with very simple quadratic equations that can be solved in one easy step.

- Using the Pythagorean Theorem - The Pythagorean Theorem is a very helpful formula when solving real world problems that involve right triangles!

- Solving Quadratic Equations by Factoring - These quadratic equations are not so simple, and we must use our factoring skills in order to solve.

- Using the Quadratic Formula - When in doubt, we an always use the quadratic formula to solve a problem! Learn how to use this very special formula.

- Graphing Quadratic Equations - What does the graph of a quadratic equation look like?

- Quadratic "Projectile" Word Problems
- Learn how to solve word problems dealing with quadratic equations. In this lesson we will take a look at projectiles.

A quadratic equation is any equation that can be written in the form:

Ok, I think you are ready to begin our last Algebra 1 unit. Let's Do It!

We will start with a lesson on square roots.

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