document.write( "Question 1010066: From each corner of a square piece of sheet metal, remove a square of side 9 centimeters. Turn up the edges to form an open box. If the box is to hold 144 cubic centimeters, what should be the dimensions of the piece of sheet metal? \n" ); document.write( "
Algebra.Com's Answer #625547 by josgarithmetic(39617)\"\" \"About 
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Unknown side length of the square, x.
\n" ); document.write( "Known height created by the \"edges\" or flaps to be folded, h.
\n" ); document.write( "The volume of the resulting box is known, v.\r
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\n" ); document.write( "\n" ); document.write( "The assigning of variables, \"system%28x=unknown%2Ch=9%2Cv=144%29\".\r
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\n" ); document.write( "\n" ); document.write( "Multiply the three dimensions of the resulting box gives the specified volume.
\n" ); document.write( "This equation comes from the description:
\n" ); document.write( "\"highlight_green%28h%28x-2h%29%28x-2h%29=v%29\"\r
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\n" ); document.write( "\n" ); document.write( "NOTE: UNKNOWN MISTAKE IN THE GENERALIZED SYMBOLIC SOLUTION; SEE THE MORE SPECIFIC STEPS BELOW.
\n" ); document.write( "Solve for the unknown variable,x.
\n" ); document.write( "\"h%28x%5E2-4hx%2B4h%5E2%29-v=0\"
\n" ); document.write( "\"hx%5E2-4hx%2B4h%5E3-v=0\"
\n" ); document.write( "Depending on comfort and how long you want to continue all in symbols, substitute the given values any time.\r
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\n" ); document.write( "\n" ); document.write( "\"x=%284h%2B-+sqrt%28%28-4h%29%5E2-4%2Ah%284h%5E3-v%29%29%29%2F%282h%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%284h%2B-+sqrt%2816h%5E2-4h%5E4%2B4hv%29%29%2F%282h%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%284h%2B-+2sqrt%284h%5E2-h%5E4%2Bhv%29%29%2F%282h%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=%282h%2B-+sqrt%284h%5E2-h%5E4%2Bhv%29%29%2Fh\"
\n" ); document.write( "Certainly, substitute the given values now at the latest, and evaluate x.
\n" ); document.write( "Finding imaginary component to the solution, so must be a mistake (maybe on my part).\r
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\n" ); document.write( "\n" ); document.write( "*MORE SPECIFIC, DIRECTLY USING THE GIVEN VALUES WITHOUT GENERALIZATIONS:
\n" ); document.write( "Trying again without generalizing:
\n" ); document.write( "\"9%28x-2%2A9%29%28x-2%2A9%29-144=0\"
\n" ); document.write( "\"%28x-18%29%5E2-16=0\"
\n" ); document.write( "\"%28x-18%29%5E2=16\"
\n" ); document.write( "\"x-18=0%2B-+4\"
\n" ); document.write( "\"x=18%2B-+4\"
\n" ); document.write( "Subtracting 4 will not work for anything realistic. Use the PLUS form.
\n" ); document.write( "\"highlight%28x=22%29\".
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