Me podrían ayudar con esta tarea es de física

Write a polynomial function with the given zeros x= -1,0,2show your work

An element becomes a positively charged ion when itloses protons.loses electrons.gains electrons.gains neutrons.

Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).