SOLUTION: the length of a rectangular swimming pool is 2x-1 meters, and the width is x+2 meters. Can you write a polynomial A(x) that represents the area? Find A(5).

Algebra ->  Surface-area -> SOLUTION: the length of a rectangular swimming pool is 2x-1 meters, and the width is x+2 meters. Can you write a polynomial A(x) that represents the area? Find A(5).      Log On


   

Question 169097This question is from textbook Elementary and Intermediate Algebra
: the length of a rectangular swimming pool is 2x-1 meters, and the width is x+2 meters. Can you write a polynomial A(x) that represents the area? Find A(5). This question is from textbook Elementary and Intermediate Algebra

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Area of a rectangle is Area+=+Length+%2A+Width
Area+=+%282x-1%29+%2A+%28x%2B2%29
Area+=+2x%2A%28x%2B2%29+-1%2A%28x%2B2%29
Area+=+2x%5E2+%2B+4x+-+x+-+2
Area+=+2x%5E2+%2B+3x+-+2