Question

Simplify.

b−8
______
b−4
Write your answer with a positive exponent only.

Answer 1

b^-8 over b^-4

Answer 2

how would I do this?

Answer 3

@TheSmartOne can you help me again :( im like struggling over here

Answer 4

Like this:

\(\sf\Huge \frac{ b^{-8} }{b^{-4}}\)

Answer 5

a^n/a^m= a^(n-m)

Answer 6

Hint: \(\sf\LARGE\frac{a^m}{a^n}=a^{m-n}\)

\(\sf\LARGE a^{-b}=\frac{1}{a^b}\)

Answer 7

I don't get that at all

Answer 8

\(\color{blue}{\text{Originally Posted by}}\) @TheSmartOne
Hint: \(\sf\LARGE\frac{a^m}{a^n}=a^{m-n}\)

\(\sf\LARGE a^{-b}=\frac{1}{a^b}\)
\(\color{blue}{\text{End of Quote}}\)

Let me change the variables.

\(\sf\LARGE\frac{b^m}{b^n}=b^{m-n}\)

\(\sf\LARGE b^{-c}=\frac{1}{b^c}\)

Answer 9

oh

Answer 10

i got -8-(-4)= -4

Answer 11

correct, now use the second formula :)