Answer: -12d+(4/(4d+7))
Explanation:
To simplify the expression –48d^2 – 132d – 80 ÷ (4d + 7), we can use long division:
-12d
____________
4d + 7 | -48d^2 - 132d - 80
48d^2 + 84d
___________
- 48d - 80
+ 48d + 84
___________
4
Therefore, the simplified expression is -12d + (4/(4d + 7))