The free calculator will solve any square root , even negative ones and you can mess around with decimals too!The square root calculator below
will reduce any square root to its simplest radical form as well as provide a brute force rounded
approximation of any real or imaginary square root.
To use the calculator simply type any positive or negative number into the text box and hit the 'simplify' button.
Calculate the Square Root of: 
Simplify

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Further Reading
 How to simplify radicals
 How to simplify radicals worksheet
 Complex Numbers Home
 n^{th} root calculator  will reduce any number to its nth root