How do you simplify 5ba^-4 and write it using only positive exponents?

Mar 25, 2018

Answer:

$\frac{5 b}{{a}^{4}}$

Explanation:

There is an index law that states, ${a}^{-} n = \frac{1}{a} ^ n$
So,

$5 b {a}^{-} 4 = \left(5 b\right) \cdot {a}^{-} 4$

therefore $\left(5 b\right) \cdot \left(\frac{1}{a} ^ 4\right) = \frac{5 b}{{a}^{4}}$