Wednesday

December 17, 2014

December 17, 2014

Posted by **mchawk** on Monday, October 27, 2008 at 9:18am.

pool is 2x - 1 meters, and the width is x + 2 meters. Write

a polynomial A(x) that represents the area. Find A(5).

I have the polynomial being:

A(x)=2x^2+3x

If I find A(5):

2*5^2+3*5

2*25+15

65 meters.

Is this right?

- Algebra -
**Reiny**, Monday, October 27, 2008 at 9:41amnot quite,

You left out the constant term after you expanded

A(x) = (2x-1)(x+2)

it should have been 2x^2 + 3x - 2

adjust A(5) accordingly

**Answer this Question**

**Related Questions**

Algebra - Swimming space. The length of a rectangular swimming pool is 2x -1 ...

math 209 - Swimming space. The length of a rectangular swimming pool is 2x 1 ...

Algebra - Swimming space. The length of a rectangular swimming pool is 2x-...

Algebra - The length of a rectangular swimming pool is 2x-1 meters and the width...

algebra math 209 - swimming space. The length of a rectangular swimmung pool is ...

math - who do I work this question. The length of a rectangular swimming pool is...

need an answer checked - The length of a rectangular swimming pool is 2x-1 ...

math - the formula P= 2L+2W can be used to calculate the perimeter of a ...

math - The swimming pool that Calvin goes to has dimensions 20 meters long, 8 ...

geometry! - The swimming pool that sunny goes to has dimensions 20 meters long, ...