document.write( "Question 1101661: If the area of the region bounded by the graph of y=x^3, the line x=2 and the x-axis is revolved about the line x=-1 then find the volume of the solid revolution. \n" ); document.write( "
Algebra.Com's Answer #716442 by Alan3354(69443)\"\" \"About 
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If the area of the region bounded by the graph of y=x^3, the line x=2 and the x-axis is revolved about the line x=-1 then find the volume of the solid revolution.
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\n" ); document.write( "The limits of x are 0 and 2.
\n" ); document.write( "Use shells:
\n" ); document.write( "Volume of a shell at x = dx*x^3*2pi*(x+1)
\n" ); document.write( "dV = 2pi*(x^4 + x^3)dx
\n" ); document.write( "Vol = 2pi*(x^5/5 + x^4/4)
\n" ); document.write( "0 --> 0
\n" ); document.write( "For x = 2:
\n" ); document.write( "Vol = 2pi*(32/5 + 4)
\n" ); document.write( "= 104pi/5 cubic units
\n" ); document.write( "=~ 65.345 cubic units\r
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