SOLUTION: Open top box. Thomas is going to make an open-top box by cutting equal squares from the four corners of 11 inch by 14 inch sheet of cardboard and folding up the sides. If the area

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Open top box. Thomas is going to make an open-top box by cutting equal squares from the four corners of 11 inch by 14 inch sheet of cardboard and folding up the sides. If the area       Log On


   



Question 370765: Open top box. Thomas is going to make an open-top box by cutting equal squares from the four corners of 11 inch by 14 inch sheet of cardboard and folding up the sides. If the area of the base is to be 80 square inches, then what size square should be cut from each corner?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
(14 - 2x)(11 - 2x) = 80

154 - 50x + 4x^2 = 80

2x^2 - 25x + 37 = 0

use quadratic formula to find x