What is a Power (Exponentiation)?
A power (or exponent) represents repeated multiplication. b^n means multiplying b by itself n times.
b^n = b × b × b × ... (n times)
Example: 2^8 = 2×2×2×2×2×2×2×2 = 256
Example: 2^8 = 2×2×2×2×2×2×2×2 = 256
Power Rules
- Any number to the power of 0 = 1 (e.g., 5⁰ = 1)
- Any number to the power of 1 = itself (e.g., 7¹ = 7)
- Negative exponent = 1 / (positive power) (e.g., 2⁻³ = 1/8)
- Fractional exponent = root (e.g., 9^0.5 = √9 = 3)