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How many square roots does every positive number have?
AIt has two square roots
BIt has one square root
CIt has three square roots
DIt has four square roots
Answer & Solution
Correct answer: A. It has two square roots
1. If a value squared gives a number, that value is a square root of the number.
2. Squaring 13 gives 169, and squaring negative 13 also gives 169.
3. So every positive number has two square roots, one positive and one negative.
_Source: OpenStax Intermediate Algebra (CC BY 4.0), section 9.1 Solve Quadratic Equations Using the Square Root Property_