Candice is an interior designer and she is currently trying to change the look of a room. Candice found that the area of a room could be given by the expression 3x² + 2x and that the area of a rug, which she wants to spread on the floor, is given by the expression x² + 24x - 144. What expression represents the area of the room not covered by the rug? Concept Word problems - Rational and Irrational

1) Candice is an interior designer and she is currently trying to change the look of a room. Candice found that the area of a room could be given by the expression 3x² + 2x and that the area of a rug, which she wants to spread on the floor, is given by the expression x² + 24x - 144. What expression represents the area of the room not covered by the rug?