Question

A rectangular sheet of cardboard has dimensions 10 inches by 12 inches. Squares of equal size are removed from each of the four corners of the cardboard. The sides are then folded up to create an open top box. Find the size of the squares that must be removed that yields the maximum volume of the box.

Answer 1

Am i on the right track?

Answer 2

Yes, every step is correct, as well as the answer.
Congrats! :)

Answer 3

:)))

Answer 4

Procedure was correct. Ignore the positive root.

Answer 5

x can't exceed 5.