SOLUTION: The length of a rectangle swimming pool is 2x-1 meters and the width is x+2 meters. Write a polynomial A(x) that represent the area. Find A(5)

Algebra ->  Rectangles -> SOLUTION: The length of a rectangle swimming pool is 2x-1 meters and the width is x+2 meters. Write a polynomial A(x) that represent the area. Find A(5)      Log On


   

Question 193291: The length of a rectangle swimming pool is 2x-1 meters and the width is x+2 meters. Write a polynomial A(x) that represent the area. Find A(5)
Answer by orca(409) About Me  (Show Source):
You can put this solution on YOUR website!
Use the formula:
Area of a rectangle = length*width
So
A = %282x-1%29%28x%2B2%29
A can also be written in expanded form
A =2x%5E2-x%2B4x-2
=2x%5E2%2B3x-2