document.write( "Question 1128287: Consider the following.
\n" ); document.write( "x3 − kx2 + 2kx − 18
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Algebra.Com's Answer #744764 by MathLover1(20850)\"\" \"About 
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\"x%5E3+-+kx%5E2+%2B+2kx+-18\"\r
\n" ); document.write( "\n" ); document.write( "Find the value of \"k\" such that \"x-3\" is a factor of the above. \r
\n" ); document.write( "\n" ); document.write( "We should attempt synthetic division to find when
\n" ); document.write( "\"%28x%5E3+-+kx%5E2+%2B+2kx+-18%29%2F%28x-3%29\"has a remainder of 0, which would signify that it is a factor of the polynomial.\r
\n" ); document.write( "\n" ); document.write( "The synthetic substitution would be set up as:\r
\n" ); document.write( "\n" ); document.write( "\"3\"| \"1\".....\"-k\".....\"2k\"...\"-18\"
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\n" ); document.write( "\n" ); document.write( "Treating the synthetic division like any other synthetic division problem, we see that\r
\n" ); document.write( "\n" ); document.write( "\"3\"| \"1\".....\"-k\"..........\"2k\".................\"-18\"
\n" ); document.write( "−----------\"3\"........\"-3k%2B9\".........\"-3k%2B27\"
\n" ); document.write( "−−---------\"1\".....\"-k%2B3\"........\"-k%2B9\".......|\"0\"
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\n" ); document.write( "If the remainder equals \"0\", then we know that \r
\n" ); document.write( "\n" ); document.write( "\"-3k%2B27-18=0\"\r
\n" ); document.write( "\n" ); document.write( "\"27-18=3k\"\r
\n" ); document.write( "\n" ); document.write( "\"3k=9\"\r
\n" ); document.write( "\n" ); document.write( "\"k=3\"\r
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\n" ); document.write( "\n" ); document.write( "\"x%5E3+-+3x%5E2+%2B+2%2A3x+-18\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E3+-+3x%5E2+%2B+6x+-18\"\r
\n" ); document.write( "\n" ); document.write( "\"x%5E3+-+3+x%5E2+%2B+6+x+-+18+=+%28x%5E2+%2B+6%29+%2A+%28x+-+3%29+%2B+0\"\r
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