Question

The area of a room is 396 square feet. The length is (x + 8) feet and the width is (x + 4) feet. Find the dimensions of the room.

Answer 1

22 ft by 18 ft

Explanation:

Area = l * w

Area = (x+8) * (x+4) = x^2 +12x+32

396 = x^2 +12x+32

400 = (x+6)^2

20 = x+6

x = 14

x+8 = 22

x+4 = 18