Question 1128718: I have a test on radicals in a few days, what are some formulas I would need to know, and how should those formulas be used?
Found 2 solutions by addingup, MathLover1:
Answer by addingup(3677)   (Show Source):
You can put this solution on YOUR website! A radical is an expression that has a root, like a square root.
Basically this is a root: √a+b The √ is the radical symbol and is often just called the root sign.
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If there is no number over the √ it is assumed that you have a square root. But you could have a 3, 4, etc The 3 is called a cube root, higher numbers go by 4th root, 5th root, etc.
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The number sitting on top of the √ is the radical, and the number(s) under the line to the right of it (I can't make the line here but see attachment below) are called the radicand.
Answer by MathLover1(20849)  (Show Source):
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