SOLUTION: Each side of a square is 4 m long. When each side is increased by x meters, the area is doubled. Find the value of x

Algebra ->  Customizable Word Problem Solvers  -> Geometry -> SOLUTION: Each side of a square is 4 m long. When each side is increased by x meters, the area is doubled. Find the value of x      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 255715: Each side of a square is 4 m long. When each side is increased by x meters, the area is doubled. Find the value of x
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
4^2=16m^2 area
(4+x)^2=32 we don't have to complete the square. It is complete already.
4+x=+-sqrt(32)
x=-4+4(sqrt(2))=1.657...m
.
Ed