Posted by **Kristen ** on Monday, June 14, 2010 at 9:52pm.

The area if a rectrangular swimming pool can be represented by the trinomial expression 6xsqaured+5x-4. If x= 4m, what is the total area of the pool and what are it's dimensions?

- Math -
**Jen**, Monday, June 14, 2010 at 10:03pm
Wherever there's an x, put in 4m and solve. 6(4m)^2+5(4m)-4=

- Math -
**Kristen **, Monday, June 14, 2010 at 10:09pm
Oh Thank you,

But them what are the dimensions?

How do i figure out that?

- Math -
**Reiny**, Tuesday, June 15, 2010 at 12:37am
Our area of

6x^2 + 5x - 4 factors to

(3x+4)(2x-1)

so if x = 4

3x+4 = 16

2x-1 = 7

So the length is 16 and the width is 7

Note that 7(16) = 112 which is what you get if you follow Jen's substitution.

## Answer this Question

## Related Questions

- MATH - area question - I need help on where to begin with this problem. You are...
- pre calc. help!!!!!! - i am building a rectangular swimming pool. the pool is to...
- Math - Jennifer plans to fence a rectangular area around her rectangular ...
- Math (Area) - I need help on where to begin with this problem. You are ...
- Algaebra - A rectangular swimming pool is 5 feet longer than it is wide. If a ...
- Algebra - width W or a rectangular swimming pool is 7x^2. The area of the pool ...
- Math - Jennifer plans to fence a rectangular area around her rectangular ...
- math - Im doing my homework and it provides barely any info. here is the ...
- Math - A family put a swimming pool in their backyard the rectangular backyard ...
- math - a swimming pool has an area of 40 square metres and a perimeter of 26 ...

More Related Questions