Answer:
width * (length1 + length2)
Step-by-step explanation:
Hi!
If the dimensions of the room1 are width1 and length1, the area of the room1 is width1 * length1
Analogously for the room2, its area is width2 * length2
Therefore the total area is
(width1 * length1)+(width2 * length2)
however, if width1 = width = width2, the total area could be simplified:
(width * length1)+(width * length2) = width * (length1 + length2)