SOLUTION: The length os a rectangular swimming pool is 2x -1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters.

Question 148003This question is from textbook Elementary and Intermediate Algebra
: The length os a rectangular swimming pool is 2x -1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters. This question is from textbook Elementary and Intermediate Algebra

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Remember, Area=length*width.

So

Start with the given equation.

Plug in L=2x-1 and w=x + 2

Foil.

So the area is

Now let's find the area if x is 5 meters.

Start with the area polynomial equation

Plug in .

Square to get .

Multiply and to get .

Multiply and to get .

Combine like terms.

So the area is 63 square meters.
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