Multiple choice general knowledge math & puzzles

How many square roots does a positive real number have?

  1. 0

  2. 1

  3. 2

  4. Infinitely Many
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Every positive real number has exactly two square roots: one positive and one negative. For example, the square roots of 9 are 3 and -3, since both 3^2 = 9 and (-3)^2 = 9. By convention, the radical symbol √ denotes the principal (non-negative) square root, but both roots exist.

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