# How do you simplify # (2a^-3)(a^7b^-1)^3#?

##### 1 Answer

The answer is

#### Explanation:

**1. Distribute the exponent of 3** - multiply every exponent inside the parentheses by 3.

**2. Simplify** by multiplying the same factors together.

Remember, when multiplying powers with the same base, you add the exponents.

We should give answers with positive indices. So now

That's your final answer!