Final answer:
The result of AB - C is n² + 6n + 1.
Step-by-step explanation:
To find the result of AB - C, we need to substitute the given polynomials into the expression. A = n, B = 2n + 6, and C = n² - 1. We have:
AB - C = (n)(2n + 6) - (n² - 1)
Simplifying, we get:
AB - C = 2n² + 6n - n² + 1 = n² + 6n + 1
So, the result of AB - C in its simplest form is n² + 6n + 1.