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ClassBrain and BrightStorm have teamed up to bring you free interactive math lessons covering the algebra, geometry, trigonometry, and more. We also have excellent math test prep courses that you can sign up for and do online at your own pace.
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Solving Linear Sy...

One of the most common applications of square matrices is to solve systems of linear...

Simplifying Radic...

When simplifying square roots, we give the positive and negative answer if solving an...

Solving Equations...

It takes practice and a few useful methods to decide where to start when solving...

Factoring Trinomi...

When you are given a trinomial, or a quadratic equation, it can be useful to factor...

Simplifying Compl...

When you simplifying complex fractions, factor the numerator and denominator into...

Augmented Matrice...

To solve a system of linear equations, we can use substitution, elimination or...

Solving a Quadrat...

Solving quadratics can be difficult. Completing the square is one method for solving a...

Inverse of a Squa...

We use the identity matrix to calculate a the inverse of a square matrix. In order to...

Introduction to E...

Variables are used throughout Algebra, Geometry, and Calculus. Variables are therefore...

Graphing Linear E...

We often use a table of values to plot and connect points when we are graphing a line....
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