Answer:
d(x)=-750x^2-3750x-10500
Explanation:
The manager of a department store uses the given function to model the monthly opening inventory of down comforters at the store, in dollars, where x represents the number of months from September.
d(x)=-750(x^2-5x-14)
To rewrite this hat reveals the store's opening inventory of down comforters in the month of September, multiply -750 on the bracket, we get
d(x)=-750x^2-3750x-10500