CPM Homework Help : CCG Problem 6-78

Multiple Choice: The length of a rectangle is three units shorter than twice its width. Which expression below could represent the area of the rectangle?

$2x^2-3$

$2x^2-6x$

$2x^2-3x$

$(2x-3)^2$

Hint:

Draw a rectangle and label its width $x$ . What should you label the length? Multiply your expressions for the length and width to obtain an expression for the area.