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Variable Potential Part A The potential as a function of position in a region is V(x) = 5x-7x2-x3, with x in meters and V in volts. Find all points on the x-axis (in m) where V-0. Enter your answers below separated by a comma. (You do not need to enter any units.) Submit Answer Incorrect. Tries 2/6 Previous Tries Part B Find an expression for the electric field. Your expression should be in terms of the given variable. D E(x) = Submit Answer Tries 0/6 Part C Find all points on the x-axis (in m) where E0. Enter your answers below separated by a comma. (You do not need to enter any units.) Submit Answer Tries 0/6

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