Given a number x, the square root of x is the number which, when multiplied by itself, gives x.
So, if x = 9, then sqrt of 9
= -3 since (-3) * (-3) = 9
or
= +3 since (+3) * (+3) = 9
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One definition of "root" is "the basic cause, source, or origin of something." The source of a perfect square is the number that was multiplied by itself to create it: the root of the square, the square root.
We will walk through the definition of the square root of 63, find out whether the square root of 63 is rational or irrational, and see how to find the square root of 63 by the long division method. ... Square Root of 63.
square root
Yes and no. It depends on your definition of square root. By the actual one, yes. All non-negative numbers have a square root. That square root might be irrational but it has a square root, nonetheless. 10 isn't a square number because there's no integer that can be squared to make ten but 10 definitely has a square root: 3.16227766....... If by square root you mean an integer square root, then no. If a number has an integer as its square root then you could square that integer to get the number, making it a square number.
A number will have both a positive and negative square root 5 x 5 = 25 and -5 x -5 = 25.