3. \( c^{-5} d^{7} \)

It looks like you're working with the expression: \[ c^{-5} d^{7} \] To simplify this expression by eliminating the negative exponent, you can rewrite it with positive exponents. Here's how you can do it: ### Step-by-Step Solution: 1. **Understand Negative Exponents:** A negative exponent indicates the reciprocal of the base raised to the corresponding positive exponent. Specifically: \[ c^{-5} = \frac{1}{c^{5}} \] 2. **Rewrite the Expression:** Replace \( c^{-5} \) with its reciprocal form: \[ c^{-5} d^{7} = \frac{1}{c^{5}} \times d^{7} \] 3. **Combine the Terms:** You can express the entire expression as a single fraction: \[ \frac{d^{7}}{c^{5}} \] ### Final Simplified Form: \[ \frac{d^{7}}{c^{5}} \] This represents the original expression with all exponents positive.