Web Results

## Purplemath

www.purplemath.com/

Purplemath contains practical algebra lessons demonstrating useful techniques and pointing out common errors. Lessons are written with the struggling student ...

## Practical Algebra Lessons - Purplemath

www.purplemath.com/modules/index.htm

Practical algebra lessons that emphasize the practicalities of understanding ...

## An Ordered Listing of the Lessons - Purplemath

www.purplemath.com/modules/ordering.htm

An Ordered Listing of the Lessons. The Purplemath lessons have been written ...

## Solving Linear Equations: 'One-Step' Equations - Purplemath

www.purplemath.com/modules/solvelin.htm

"Linear" equations are equations with just a plain old variable like "x", rather ...

## Quizzes and Worksheets - Reviews - Purplemath

www.purplemath.com/quizzes.htm

Links to web sites offering quizzes and worksheets; reviewed by Purplemath.

## Lessons and Tutoring - Reviews - Purplemath

www.purplemath.com/lessons.htm

Lessons and Tutoring - Reviews ... added online lessons to its print offerings.

## The Order of Operations: PEMDAS - Purplemath

www.purplemath.com/modules/orderops.htm

Explains the order of operations ' PEMDAS') in plain terms, points out common ...

## Mean, Median, Mode, and Range - Purplemath

www.purplemath.com/modules/meanmode.htm

Explains how to compute the mean, median, mode, and range of a list of ...

## Solving Inequalities: An Overview - Purplemath

www.purplemath.com/modules/ineqsolv.htm

Solving linear inequalities is very similar to solving linear equations, except for ...

## The Order of Operations: More Examples - Purplemath

www.purplemath.com/modules/orderops2.htm

Demonstrates the order of operations through worked examples. Points out a ...

Popular Q&A
Q: Help me understand a PurpleMath example?
A: We have the identity: x^3 - a^3 = (x - a) (x^2 + ax + a^2). In our case, we have a^3 = 8, so a = 2.-. Personally, I would have done it this way: 0 = x^3 - 8. 8 ... Read More »