Question

Help asap please!!!!!

Answer 1

We need to use power laws for this one.

Lets say we have
`(x^5)^7`. What does this really mean?

It means we have 7
`x^5`s all multiplied together.

`x^5 * x^5 * x^5 ... * x^5` 7 times. If we expand the
`x^5`, we get

`(x*x*x...*x )*(x*x*x...*x)...*(x*x*x...*x)`

Now, we have 5 x multiplied together 7 times. How many x is that?

its 7 * 5 x, or 35. So, it's equal to
`x^3^5`

This is the power law we'll need here;

`(x^a)^b = x^a^b`

Explanation:

`(8^5)^4 = 8^5^*^4 = 8^2^0`

which is the answer