Final answer:
The difference between the coefficients in the polynomial 12t²+5t+8 is obtained by subtracting the smallest coefficient from the largest, resulting in 7.
Step-by-step explanation:
The difference between the coefficients in the polynomial 12t²+5t+8 refers to subtracting the coefficients of the corresponding terms. The coefficients of the terms are 12 for t², 5 for t, and 8 as the constant term. To find the difference between the coefficients, you would subtract the smallest coefficient from the largest one, which is 12 - 5 = 7.