SOLUTION: A square field had 5 meters added to its length and 2 meters added to its width. The field then had an area of 130 meters squared. Find the length of a side of the original field

Question 200250: A square field had 5 meters added to its length and 2 meters added to its width. The field then had an area of 130 meters squared. Find the length of a side of the original field.
The equation I came up with is n+5(n+2)= 130^2. At which point I am unfamiliar with how to solve this.
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
The area is 130 square meters. Not 130^2. Area is always in some sort of squared linear measure.
Now expand

So the possible lengths are -15 and 8. Since a length can't be negative, the original field was 8 meters on each side.

RELATED QUESTIONS
A square field had 5 meters added to the length and 2 meters to its width. The field... (answered by ankor@dixie-net.com)

A square field had 5 meters added to its length and 2meters added to its width.The field (answered by ankor@dixie-net.com,ikleyn)

A square field had 5 m added to its length and 2 m added to its width. The field then had (answered by solver91311)

A square field had 5m added to its length and 2m added to its width. The field then had... (answered by uday1435)

A square field has 5m added to its length and 2m added to its width.The field then had an (answered by vleith)

I have a homework problem. "A square field had 3 m added to its length and 2 m added to... (answered by stanbon)

A rectangle has a length 2 meters less than twice its width. When 5 meters is added to... (answered by checkley77)

A rectangle has a length 2 meters less than twice its width. When 5 meters is added to... (answered by ankor@dixie-net.com)

A rectangle has a length 2 meters less than twice its width. When 5 meters is added to... (answered by checkley77)