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Math Help: Radicals basics

Refresh your competency in the various areas of Mathematics.


In this module you can study radicals, such as square roots and cube roots.


The 11-minute video above is a long explanation of square roots and radicals. She starts by reviewing how to square a number. If you want to skip that part, start the video at 3:00.


This video demonstrates how taking a square root of a number is the opposite of squaring a number.

Did you know?

The number inside the radical sign is called the radicand.

Radicals are the inverse of exponents.  For example, to "undo" a square, you take the square root.

Study and practice

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Use these search terms to find your own resources:

square roots
working with radicals in algebra
mathematics radicals

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