Mr. Ross is building a square ball room with a square dance floor surround by carpet to the wall. The room has a side length of 3x-4, and the dance floor has a side length of 2x-6. Write an expression that represent how much carpet will Mr. Ross need for his ball room.

He will need (x+2)(x-2) units squared.

Step-by-step explanation:

Alright, so to solve this it is necessary to find the area of the room and subtract the area of the dance floor from it.

Fortunately, squares are a special case where we only need to... well square the side.

Therefore:

Great. Difference of two squares.

Therefore:

whatvare the choices

step-by-step explanation: