document.write( "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? \n" ); document.write( "

Algebra.Com's Answer #745200 by addingup(3677) $\"\"$ $\"About$

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A radical is an expression that has a root, like a square root.
\n" ); document.write( "Basically this is a root: √a+b The √ is the radical symbol and is often just called the root sign.
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\n" ); document.write( "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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\n" ); document.write( "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.
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