# How do you simplify #9times10^ -31 * (3times10 ^7)^2 #?

##### 1 Answer

Nov 9, 2015

#### Explanation:

First of all, simplify the square in the second part:

According to the power rule

Now, compute

Use the power rule:

This might already be a final answer.

If you would like to formulate the result in the scientific notation, you would need to shift one digit of the