document.write( "Question 1004084: Use the factor theorem to determine if (x+3) is a factor of
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document.write( "f(x)= x64+3x^3-12x^2+100 \n" );
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Algebra.Com's Answer #620627 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Use the factor theorem to determine if (x+3) is a factor of \n" ); document.write( "f(x)= x64+3x^3-12x^2+100 \n" ); document.write( "---- \n" ); document.write( "Comment:: x+3 is a factor if f(-3) = 0 \n" ); document.write( "--------------- \n" ); document.write( "Rearranging f(x) \n" ); document.write( "f(x) = 3x^3-12x^2 + 64x + 100 \n" ); document.write( "f(-3) = 3(-3)^3 - 12(-3)^2 + 64(-3) + 100 \n" ); document.write( "----- \n" ); document.write( "f(-3) = 3(-27) - 108 - 132 + 100 \n" ); document.write( "---- \n" ); document.write( "f(-3) = -81 - 108 - 132 + 100 \n" ); document.write( "---- \n" ); document.write( "f(-3) = -281 \n" ); document.write( "--- \n" ); document.write( "Since f(-3) is not zero, x+3 is not a factor of f(x) \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "-------- \n" ); document.write( " |