The principal square root of 9 is which value?

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Multiple Choice

The principal square root of 9 is which value?

Explanation:
The principal square root is the nonnegative number whose square equals the given number. Here, 3^2 = 9, so the principal root is 3. The number -3 also squares to 9, but it isn’t the principal root because it is negative. Numbers like 0 or 6 don’t square to 9 (0^2 = 0, 6^2 = 36), so they aren’t the square root either. Therefore, the principal square root of 9 is 3.

The principal square root is the nonnegative number whose square equals the given number. Here, 3^2 = 9, so the principal root is 3. The number -3 also squares to 9, but it isn’t the principal root because it is negative. Numbers like 0 or 6 don’t square to 9 (0^2 = 0, 6^2 = 36), so they aren’t the square root either. Therefore, the principal square root of 9 is 3.

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