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

Question 343887: Each side of a square is 4 meters long. When each side is increased by x meters, the area os doubled. Find the value of x.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Each side of a square is 4 meters long. When each side is increased by x meters, the area os doubled. Find the value of x.
The area of a square is,

Initially,

.
.
.

Use the quadratic formula,

Only the positive answer makes sense in this situation.

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