document.write( "Question 1207475: 4 - i is a solution of a quadratic equation with real coefficients.Find the other solution.\r
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document.write( "How is this one done? \n" );
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Algebra.Com's Answer #845368 by ikleyn(52788)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The general theorem of algebra states that if a polynomial with real coefficients \n" ); document.write( "has a complex number root a+bi, b=/= 0, then it has another complex number root a-bi, too.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "According to this theorem, if 4-i is the root of your quadratic equation with real coefficients, \n" ); document.write( "then it has the root 4+i, too. It is your other root.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |