What is the maximum volume possible from a piece of cardboard that is made into a cube, that measures 16 inches by 12 inches?
[ __________ ]
[___________ ] 12 - 2x
16in - 2x
- A Box with no top.
this is where I got stuck.
Okay so I've been looking at this question and I'm not sure I understand what it's asking, so I'm not sure how you got your initial equations.
But given your starting equations, I rather think you'll find that in your first step, 12 x 16 is a little bit more than 172.
Your end equation should be something like
Your quadratic in the brackets factorises easily.