Provide the suitable steps required to find the answer of the given problem

Problem- A point charge of -4.00nC is at the origin, and a second point charge of 6.00nC is on the x axis at x = 0.750m. Find the magnitude and direction of the electric field at each of the following points on the x axis.

Part 1- x2 = 16.0cm

Part 2- The field at point x2 is directed in

Part 3- x3 = 1.00m

Part 4- The field at point x3 is directed in

Part 5- x4 = -24.0cm

Part 6- The field at point x4 is directed in

I want experts help to find right answer of the above problem.