Respuesta :

The area of the banner, expressed in simplest form, is: (9 + 3x) ft²

How to Determine the Area of a Rectangle

  • The area of a rectangle = length × width

The banner given in the image below has a rectangular shape. So, the area of the banner will be determined using the area of a rectangle.

  • length = (3 + x) ft
  • width = 3 ft

Area of the banner = (3 + x)3

Area = (9 + 3x) ft²

Therefore, the area of the banner, expressed in simplest form, is: (9 + 3x) ft²

Learn more about area of rectangle on:

https://brainly.com/question/14137384

Ver imagen akposevictor