[MOVED] Polynomial word problem: open-top boxes

[ahlingg]

Open-top boxes are constructed by cutting equal squares from teh corners of cardboard sheets that measure 32 cm by 28 cm. Determine possible dimensions of the boxes if each has a volume of 1920 cm cubed.

 

[Loren]

Draw your sketch. Label the sides of the squares to be cut out from the corners, x. Write your equation based on the sketch.
I got... x(32-2x)(28-2x)=1920.
Solve for x. I got 3 values for x all of which were nice whole numbers.

 

[skeeter]

Draw your sketch. Label the sides of the squares to be cut out from the corners, x. Write your equation based on the sketch.
I got... x(32-2x)(28-2x)=1920.
Solve for x. I got 3 values for x all of which were nice whole numbers.

... and one of the three makes no sense in the context of the problem.