Question

Simplify this expression.

a9 × a18 =

Answer 1

`a^(27)`

Explanation:

assuming you mean

`a^(9)` ×
`a^(18)`

using the rule of exponents

`a^(m)` ×
`a^(n)` =
`a^((m+n))`

then

`a^(9)` ×
`a^(18)` =
`a^((9+18))` =
`a^(27)`