Originally Posted by

**mike_302** Is it possible to build a fence on 3 sides of a rectangular piece of land with an area of 100m^2, so that the total length of the fence is 25 m ?

I created the two equations l+2w=25m (same as l=25-2w) and l*w=100m^2 . Then I put them together to make (25-2w)(w)=100 , and then I distribute the "w" and complete the square. The back of the book says it isn't possible though. Anyone able to do this and tell me what you get? Because I AM getting a final answer, but its not working out.