Equations (one variable)

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A helpful scientific calculator that runs in your web browser window.

Excellent site showing examples of algebra, trig, calculus, differential equations, and linear algebra.

How to solve quadratic equations using the completing the square method.

An introduction to how to solve word problems

How to solve quadratic equations using the quadratic formula

The perfect study site for high school, college students and adult learners. Get help to do your homework, refresh your memory, prepare for a test, ....

How to find the roots of polynomial equations