Which expression is equivalent to this polynomial? 9x^2 + 4

A. (3x + 2i)(3x − 2i)
B. (3x + 2)(3x − 2)
C. (3x + 2i)^2
D. (3x + 2)^2

A. (3x + 2i)(3x − 2i)

I hope this helps.

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Hi i need i need to get all a’s and i really need some