Posted by **Brieson** on Saturday, March 16, 2013 at 2:17pm.

width W or a rectangular swimming pool is 7x^2. The area of the pool is 7x^3--42x^2. what expression for the length of the pool? please walk me through this.

- Algebra -
**Damon**, Saturday, March 16, 2013 at 2:20pm
W * L = 7 x^3 - 42 x^2

7 x^2 * L = 7 x^3 - 42 x^2

L = x - 6

- Algebra -
**Brieson**, Saturday, March 16, 2013 at 2:40pm
Damon-Thank you very much

- Algebra -
**Anonymous**, Monday, June 10, 2013 at 12:35am
The deck around a swimming pool has the same width all the way around. The perimeter of the pool is 50m. The outside perimeter of the deck is 74m. What is the width of the deck

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