Physics Assignment Solving | Question in video & also in description

Question A particle moving along the x-axis has the potential energy U=15/xJ, where x is in m. Part A What is the x-component of the force on the particle at x= 2.3m? Express your answer to two significant figures and include the appropriate units. Fx= ?

Part B What is the x-component of the force on the particle at x= 7.0m? Express your answer to two significant figures and include the appropriate units. Fx= ?

Part C What is the x-component of the force on the particle at x= 8.2m? Express your answer to two significant figures and include the appropriate units.