A, b, and c are polynomials, where a = n, b = 2n + 6, and c = n2 – 1. what is ab – c in simplest form?

a=–n2 + 3n + 5
b=n2 + 6n + 1
c=2n2 + 6n – 1
d=3n2 + 5

If you would like to find AB - C in simplest form, you can do this using the following steps:

A = n
B = 2n + 6
C = n^2 - 1

AB - C = n * (2n + 6) - (n^2 - 1) = 2n^2 + 6n - n^2 + 1 = n^2 + 6n + 1

The correct result would be B=n2 + 6n + 1.