Question

How do you write `b^-5*b^-9` using only positive exponents?

Answer 1

`b^-14=1/b^14`

Explanation:

We can combine the terms:

`b^-5 xx b^-9`

`b^(-5-9)`

`b^-14`

And then using the identity `x^-1=1/x`, we can rewrite as:

`b^-14=1/b^14`