8th Grade · Expressions & Equations
Product Rule
8.EE.A.1
Definition
When multiplying powers with the same base, keep the base and add the exponents. x to the a times x to the b equals x to the a plus b.
Examples
- x3 · x4 = x7.
- Only works with the same base — x2 · y4 does NOT combine.
Key rule
Add the exponents when multiplying powers with the same base.
Memory hook
Same base, multiplying — add the exponents.