document.write( "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. \n" ); document.write( "
Algebra.Com's Answer #245155 by checkley77(12844)\"\" \"About 
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V=(20-2x)(25-2x)x
\n" ); document.write( "V=(500-50x-40x+4x^2)x
\n" ); document.write( "V=500x-90x^2+4x^3 ans.
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