Question

The walls of a square room with side length s are being torn down and rebuilt. The area of the new room can be represented by 1.75s(2s + 3).

Which expression represents the area of the new room?

3.75s + 4.75
3.75s2 + 4.75s
3.5s2 + 5.25s
3.5s + 5.25

Answer 1

1.75s(2s + 3) = (1.75·2)s^2 + (1.75·3)s = 3.5s^2 + 5.25s

So the correct choice is: 3.5s2 + 5.25s.