Study Guide

# Algebraic Expressions Topics

### Variables

A variable is a letter, like x or y, that represents an unknown number. Another way of thinking...

### Expressions and Equations

In the English language, we've got phrases and we've got sentences. A phrase is a string of words...

### Combining Like Terms

You probably don't keep bananas in your sock drawer or toothpaste on your bookshelf. If you do,...

### Equations, Functions, and Formulas

What are these expression things good for, anyway? You can't have equations and formulas without...

### Toolbox Applications

Why did we create this toolbox of ways to rearrange expressions into equivalent expressions?...

### Geometric Formulas

Formulas wouldn't tell us squat if we couldn't turn around and apply them to situations in the...

### Unit Conversion

Here's a video to showcase unit conversion in action.

### In the Real World

Hey, we like practical stuff, too! The great thing is that all of these formulas can be applied...