Write Using Positive Exponents 4^4(4^-7)(4)

$4^{4} (4^{- 7}) (4)$

Move $4^{- 7}$ to the denominator in $4^{- 7}$ using the negative exponent rule $b^{- n} = \frac{1}{b^{n}}$ .

$\frac{1}{4^{7}}$