Answer
$$\log _{10}\left(\frac{x^2}{y^4}\right)$$
Work Step by Step
Simplifying the expression using the rules of logarithms, we find:
$$\log _{10}\left(x^2\right)-\log _{10}\left(y^4\right)\\ \log _{10}\left(\frac{x^2}{y^4}\right)$$
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