SOLUTION: how do you know when to multiply the exponet?

Question 78647: how do you know when to multiply the exponet?
Found 2 solutions by Earlsdon, jim_thompson5910:
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
You multiply exponents when you raise a variable or a constant to some power.
Here's an example:
=
=
Whenever you multiply variables, then you woul add the exponents only if the variables (also called the base) are the same.
Examples:
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Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Lets say you have something like

This breaks down to

Now if we multiply this out we get

Which is equivalent to

So this way is much faster since if we had we would have to add 5 to itself 20 times. However, we can use multiplication as a shortcut to get to the same answer.

So you multiply exponents when you have an expression with an exponent (like ) that is raised to another exponent (for instance )
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