The length of a rectangular room is 2 feet greater than its width. Which of the following equations represents the area (A) of the room?
A = 2x
A = 2x+2(x+2)
A = x+(x+2)
A = x(x+2)
Correct Answer : D
we are asked to find the area of a rectangle, which can only be found by finding the relation between length and width. Now, letting x represent the width, then
Length of rectangle=(x+2)
Width of the rectangle= x
Area of the rectangle, A= Length*width=(x+2)*x
A=x(x+2)
Therefore, the area of the rectangle becomes x(x+2).
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