document.write( "Question 704378: A 8 ft thick slice is cut off the top of a cube, resulting in a rectangular box that has volume of 136 ft^3 . Use a graphing calculator to find the side length of the original cube. Round your answer to two decimal places. \n" ); document.write( "
Algebra.Com's Answer #434355 by ankor@dixie-net.com(22740)\"\" \"About 
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A 8 ft thick slice is cut off the top of a cube, resulting in a rectangular box that has volume of 136 ft^3.
\n" ); document.write( ":
\n" ); document.write( "Let x = the side of the cube
\n" ); document.write( "then
\n" ); document.write( "x^3 = original vol of the cube
\n" ); document.write( "and
\n" ); document.write( "8x^2 = vol of the 8 ft slice
\n" ); document.write( ":
\n" ); document.write( "Therefore:
\n" ); document.write( "x^3 - 8x^2 = 136
\n" ); document.write( "x^3 - 8x^2 - 136 = 0
\n" ); document.write( ":
\n" ); document.write( "In your graphing calc looks like
\n" ); document.write( "\"+graph%28+300%2C+200%2C+-6%2C+20%2C+-500%2C+1000%2C+x%5E3-8x%5E2-136%29+\"
\n" ); document.write( "Using the calc \"zero\" feature x = 9.5052584 ~ 9.51, original side length \n" ); document.write( "
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