What are the values of the coefficients and constant term of 0 = 4 - 7x + x in standard form?

Looks as tho' you may have omitted x^2 by mistake.

If you started out with 0 = 4 - 7x + x^2, then 1x^2 - 7x + 4 = 0.

The coefficients are then {1, - 7, 4}. The constant term is 4.