SOLUTION: an open box is made from a rectangular piece of material 20"by 25" by cutting equal squares from each corner and turning up the sides. Let x be the length of each side of the squar

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Question 342419: an open box is made from a rectangular piece of material 20"by 25" by cutting equal squares from each corner and turning up the sides. Let x be the length of each side of the square cut out of each corner. Write the volume V of the box as a function of x.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
V=(20-2x)(25-2x)x
V=(500-50x-40x+4x^2)x
V=500x-90x^2+4x^3 ans.