# How do you simplify t^-4?

To eliminate the negative exponent use this rule for exponents: ${x}^{\textcolor{red}{a}} = \frac{1}{x} ^ \textcolor{red}{- a}$
${t}^{\textcolor{red}{- 4}} = \frac{1}{t} ^ \textcolor{red}{- - 4} = \frac{1}{t} ^ 4$