Answer
$$\ln \left(x\right)+3\ln \left(-x+7\right)$$
Work Step by Step
Using the rules of logarithms, we find:
$$\ln \left(x\right)+\ln \left(\left(-x+7\right)^3\right) \\ \ln \left(x\right)+3\ln \left(-x+7\right)\\ $$
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