SOLUTION: Each side of a square is increased by 25.0 mm, and the area is seen to increase by 2490 mm2. What were the dimensions of the original square? Round your answer to 1 decimal plac

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Each side of a square is increased by 25.0 mm, and the area is seen to increase by 2490 mm2. What were the dimensions of the original square? Round your answer to 1 decimal plac      Log On


   

Question 1111929: Each side of a square is increased by 25.0 mm, and the area is seen to increase by 2490 mm2. What were the dimensions of the original square?
Round your answer to 1 decimal place.
h =
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2 original area

%28x%2B25%29%5E2 the new increased area

%28x%2B25%29%5E2-x%5E2=2490-------------solve this equation (simplify first).