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Every number has two square roots ... a positive one and a negative one.

Example:

+2 and -2 are both square roots of 4, because when you

multiply either of them by itself, the answer is 4.

The positive square root of a number is the square root that's not negative.

The non-negative square root of a number is the positive one.

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Q: What is the nonenegative square root of a number?
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Related questions

What is square root of a number?

The square root is the number which is times by itself, to get the square number.


Is the square root of a positive number an irrational number?

Sometimes the square root of a positive number can be irrational, as in the square root of 2 (which is a non-perfect square number), but sometimes it is a rational number, as in the square root of 25 (which is a perfect square number).


What is the difference between a square root and a square number?

3 is the square root of 9. 9 is a square number. 9 is the square root of 81. 81 is a square number.


How do you square root in my maths?

the square root of a number is the number that is multiplied by itself to get that number, for example the square root of 9 is 3


What is the square root of a negative number plus the square root of a negative number?

Nothing. You cannot have a square root of a negative number. The square root of negative one is called i, but i is an imaginary number. It does not exist and does not follow the properties of real numbers. (For example, if a and b are positive, then the square root of a times the square root of b is the square root of ab. But the square root of -7 is not the square root of 7 times i.)


What is the square root of a square that has no root?

It's not a square if it has no root. If a number is a square then, by definition, it MUST have a square root. If it did not it would not be a square.


What is the square root of the number 9?

The number 3 is the square root of the number 9 !


Is the square root of 25 a rational number?

The square root of 25 is 5 ... rational.


Is the square root of fifty a natural number?

No - a natural number is a whole number. Therefore, the square root of 49 is a natural number, but the square root of 50 is not.


What is the square root of 51?

The square root of 51 is an irrational number and it is about 7.14128429


Is a square root a number that has an integer square root?

No it is not.


What is the square root of 20?

The square root of 20 is: ± 4.472136The square root of 20 is ± 4.472136 (to 7 sf).A square root of a number is the number that when multiplied by itself equals the given number.