document.write( "Question 681107: I need help with this word problem:My online HW is giving me one last try on this problem.
\n" ); document.write( "The width of a rectangular piece of cardboard is 7 inches less than the length. A square piece that measures 3 inches on each side is cut from the corner, than the sides are turned up to make a box with volume 360 inches^3. Find the length and width of the original piece of cardboard.
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Algebra.Com's Answer #422567 by Alan3354(69443)\"\" \"About 
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The width of a rectangular piece of cardboard is 7 inches less than the length. A square piece that measures 3 inches on each side is cut from the corner, than the sides are turned up to make a box with volume 360 inches^3. Find the length and width of the original piece of cardboard.
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\n" ); document.write( "Vol = 3*(L-6)*(W-6) = 360
\n" ); document.write( "L = W + 7
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\n" ); document.write( "3*(W+7-6)*(W-6) = 360
\n" ); document.write( "(W+1)*(W-6) = 120
\n" ); document.write( "W^2 - 5W - 126 = 0
\n" ); document.write( "(W+9)*(W-14) = 0
\n" ); document.write( "W = 14 (Ignore the -9)
\n" ); document.write( "L = 21
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