Radical notation (Math symbols explained)

Monday, July 13, 2020

Radical Notation

Let's breakdown what information is given with a radical in math.

radical math

The radicand is what you are taking the root of. In the picture, you are finding the root that multiplies by itself three times in order to equal 27. 

The radical symbol tells you to find the "root of."

The degree indicates the number of times the root multiplies by itself in order to equal the radicand.

In this example, the root will multiply itself three times.

3 x 3 x 3 = 27

If there is not a root listed like this example, 
Then you can assume that it is a square root.

radical in math
In this example, the fourth root of 15 equals,
2 x 2 x 2 x 2 = 16

The second root is usually called the square root.
The third root is called the cube, and then you use the degree number. ( fourth root, fifth root, sixth root...)


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