7) \( \frac{a x^{2} b x^{-3}}{c x^{-4}} \)
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The Deep Dive
To simplify the expression \( \frac{a x^{2} b x^{-3}}{c x^{-4}} \), first, combine the terms in the numerator: \( ax^{2}b x^{-3} = ab x^{2 - 3} = ab x^{-1} \). Now, rewrite the entire expression: \[ \frac{ab x^{-1}}{c x^{-4}} = \frac{ab}{c} \cdot x^{-1 - (-4)} = \frac{ab}{c} \cdot x^{3} \] So, the simplified expression is \( \frac{ab}{c} x^{3} \). Engaging with simplifying expressions is much like finding a secret path in a maze; you're in for a fun adventure as you uncover the beauty of mathematical structure! When dealing with variables, always remember: combine powers and keep track of those pesky negative exponents. It’s all about tidying up your math life!