document.write( "Question 45548: Use the factor theorem to decide whether or not the second polynomial is a factor of the first.\r
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document.write( "9x^4+19x^3-2x^2+x+4;x+2 \n" );
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Algebra.Com's Answer #30294 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Use the factor theorem to decide whether or not the second polynomial is a factor of the first.\r \n" ); document.write( "\n" ); document.write( "f(x)=9x^4+19x^3-2x^2+x+4 ; x+2\r \n" ); document.write( "\n" ); document.write( "Determine f(-2) \n" ); document.write( "f(-2)=9(-2)^4+19(-2)^3-2(-2)^2+(-2)+4 \n" ); document.write( "=9(16)+19(-8)-2(4)+2 \n" ); document.write( "=144-152-8+2 \n" ); document.write( "=-14 \n" ); document.write( "So x+2 is not a factor of f(x) \n" ); document.write( "If it was a factor f(-2) would have been zero.\r \n" ); document.write( "\n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |