The square root of 4 is a numerical value that, when multiplied by itself, equals 4. The square root of 4 is 2, as 2×2=42×2=4. Therefore, the roots of √4 are ±2. The symbol “±” indicates that both positive and negative values are valid solutions because both 2×22×2 and (−2)×(−2)(−2)×(−2) result in 4.
