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A car dealer believes that the value of a particular used car is given by V(x)=2+ln(x^3)...

A car dealer believes that the value of a particular used car is given by V(x)=2+ln(x^3) thousand dollars over time (here x is amount of time that the car has been used). For what X, the average value of that particular car would be maximized? Write your answers clearly and concisely, including all work. Any numerical answers may be written either in exact or in approximate form as long as an exact solving method is used.

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