document.write( "Question 1147344: If (x-2) is a factor of f(x) = 4x³-19x²+ax-14, find
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document.write( "the value of the constant a
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document.write( "factorise and solve the polynomial.
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Algebra.Com's Answer #768653 by Edwin McCravy(20060)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( "Use synthetic division to divide by x - 2\r\n" ); document.write( "\r\n" ); document.write( "2 | 4 -19 a -14\r\n" ); document.write( " | 8 -22 2a-44 \r\n" ); document.write( " 4 -11 a-22 2a-58\r\n" ); document.write( "\r\n" ); document.write( " Remainder = 2a-58 = 0\r\n" ); document.write( " 2a = 58\r\n" ); document.write( " a = 29\r\n" ); document.write( "\r\n" ); document.write( " Quotient = 4x²-11x+(a-22)\r\n" ); document.write( " = 4x²-11x+(29-22)\r\n" ); document.write( " = 4x²-11x+7\r\n" ); document.write( " = (4x-7)(x-1)\r\n" ); document.write( "\r\n" ); document.write( " f(x) = (x-2)(4x-7)(x-1)\r\n" ); document.write( "\r\n" ); document.write( " x-2 = 0; 4x-7 = 0; x-1 = 0\r\n" ); document.write( " x = 2; x = 7/4; x = 1\r\n" ); document.write( "\r\n" ); document.write( "Edwin\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |