Problema Solution
you can represent the width of a certain rectangle with the expression x+2. The length of the rectangle is twice the width. what is the area of the rectangle
Answer provided by our tutors
Let x+2 = width
2(x+2) = 2x+4 = length
Area of a rectangle = length x width
A=(x+2)(2x+4)
A=2x^2+4x+4x+8
A=2x^2+8x+8
The area of the rectangle is 2x2+8x+8.