(5) \( \frac{1}{3 x^{-5}} \)

Let's simplify the expression \( \frac{1}{3 x^{-5}} \). You can start by recalling that \( x^{-n} \) is the same as \( \frac{1}{x^n} \). Therefore, \[ x^{-5} = \frac{1}{x^5}. \] Substituting this into the original expression, we have: \[ \frac{1}{3 \cdot \frac{1}{x^5}} = \frac{x^5}{3}. \] So, the simplified form becomes \( \frac{x^5}{3} \). Now, isn't that simpler? Just remember, negative exponents flip the base! For a bit of fun, think of exponents like a magic spell. When you see that minus sign, imagine it flipping your spell out of existence and bringing in its reciprocal – poof! You just simplified your problem with a wave of your wand!