heres an example on how to get a coefficient (: A coefficient is a number in front of a variable. For example, in the expression x2-10x+25, the coefficient of the x2 is 1 and the coefficient of the x is -10. The third term, 25, is called a constant.ifthe expression were -x2+10x+25, the coefficient of the x2 would be -1, and the coefficient of the x would be 10. i dont own any rights to this example