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

##### 1 Answer
Jan 19, 2018

$\frac{1}{5 {a}^{4}}$

#### Explanation:

Know that

${a}^{-} b = \frac{1}{{a}^{b}}$

$\therefore 5 {a}^{-} 4 = \frac{1}{5 {a}^{4}}$