document.write( "Question 1150007: Directions: information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.\r
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document.write( "Degree 3; zeros: -9, -5-i \n" );
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Algebra.Com's Answer #771369 by ikleyn(52788)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The remaining zero is the complex number -5+i, conjugate to the given -5-i.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It is so, because every polynomial with real coefficients has the roots as conjugate complex numbers in pairs.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |