Formulas & tables/Mathematics/Powers and roots/Product of powers with the same base
Product of powers with the same base

Product of powers with the same base

am⋅an=am+na^m\cdot a^n=a^{m+n}

Result unit: — (liczba)

What it describes

When multiplying powers with the same base, add their exponents.

Symbols

aa
base (a>0a>0)
m,nm, n
exponents

Where it comes from

When multiplying powers with the same base, you add up “how many times you multiply,” that is, you add the exponents.

When to use it

Simplifying expressions with powers that share a common base.

Example

Evaluate 23⋅242^3\cdot2^4.
Substitution3+4=73+4=7.
Result27=1282^7=128.

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