SOLUTION: If two opposite sides of a square are increased by 12 meters and the other sides are decreased by 10 meters, the area of the rectangle that is formed is 75 square meters. Find the

Algebra ->  Rectangles -> SOLUTION: If two opposite sides of a square are increased by 12 meters and the other sides are decreased by 10 meters, the area of the rectangle that is formed is 75 square meters. Find the       Log On


   

Question 988685: If two opposite sides of a square are increased by 12 meters and the other sides are decreased by 10 meters, the area of the rectangle that is formed is 75 square meters. Find the area of the original square.
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Original Square, x by x
Area x^2

New Square, x+12 by x-10
Area (x+12)(x-10)

%28x%2B12%29%28x-10%29=75
Solve for x.