exponent law
nounUK /ɪkˈspəʊnənt lɔː/
US /ɪkˈspoʊnənt lɔː/
A rule that tells you how to work with powers, like adding the little numbers when you multiply the same base.
Using the exponent law, we know that 2³ × 2² equals 2⁵.
RELATED WORDS
OTHER MEANINGS
2. A rule for dividing powers with the same base, where you subtract the exponents.
By the exponent law for division, 5⁶ ÷ 5² = 5⁴.
3. A rule for raising a power to another power, where you multiply the exponents.
The exponent law says (3²)⁴ = 3⁸.
4. A rule stating that any nonzero number to the power of zero equals one.
Thanks to the exponent law, 7⁰ = 1.