Question

The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length. Which of the following expressions represents the area of the rectangle, in square units?

Answer 1

The correct answer is option C. x² - 4

Explanation:

Area of rectangle = Length * Width

It is given that ,

The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length.

Let 'x' be the number

Length of rectangle = x - 2

Width = Length + 4 = x - 2 + 4 = x + 2

To find the area of rectangle

Area = Length * Width

Area = (x - 2)*(x + 2) = x² - 4

Therefore option C. x² - 4 is the correct answer