document.write( "Question 157311: Divide
\n" ); document.write( "x^3+2x^2+x+12/(x+3)
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Algebra.Com's Answer #115993 by checkley77(12844)\"\" \"About 
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\n" ); document.write( "x^3+2x^2+x+12/(x+3)
\n" ); document.write( "/////x^2-x+4
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\n" ); document.write( "x+3)x^3+2x^2+x+12
\n" ); document.write( "////x^3+3x^2
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\n" ); document.write( "///////-x^2+x
\n" ); document.write( "///////-x^2-3x
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\n" ); document.write( "///////////4x+12
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\n" ); document.write( "answer: x^2-x+4
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\n" ); document.write( "PROOF:
\n" ); document.write( "x^2-x+4
\n" ); document.write( "x+3
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\n" ); document.write( "x^3-x^2+4x+3x^2-3x+12
\n" ); document.write( "x^3+2x^2+x+12
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