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Calculate the change that occurs in the particles electrostatic potential energy, when the particle is:? How do you factor completely? 25x^2-81 and 4x^2-7x+2? How do you factor 4x^2-7x+2? I'm currently at 4x^2+1x-8x-2, but I don't know how to finish.? The magnetic field at the (x,y,z) position ( 3 mm , 0 mm, 0 mm) is 1.0×10−13ȷ^T. The field at (0 mm, 3 mm , 0 mm) is −1.0×10−13ı^T. speed? How the size of the planets is related with their cooling rate?