It is no tpossible to find the square root of an unknown number. You can, however, represent it as x0.5 or √x so that the value of the square root can be evaluated when the value of x is known.
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to find the square root of a number you need to find the number that multiplied by its self is that number example: the square root on 9 is 3 it is 3 because 3 x 3 - 9
Press the square root button on your calculator.
To find the square root of a number you must find the number that can multiplied by itself to equal that number Ex: the square root of 9 is 3 because 3*3=9
That will depend on the value of the unknown variable
Use a calculator (if you need) to find the principal square root. The second square root is the negative of the number.