SOLUTION: A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 15 inches by 30 inches by cutting out equal squares of side x at each corner and t
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Question 156656: A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 15 inches by 30 inches by cutting out equal squares of side x at each corner and then folding up the sides
So I have to find the volume when l=30-2x, w=15-2x and h=x
I tried to multiply everything out and got 4x^3-60x^2+450x... but got stuck... not sure wether doing that was right and if so how to continue - looked at taking x out, but still ended up in a big mess - could someone do a step by step breakdown please?
