document.write( "Question 228585: Please help.\r
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document.write( "3z^2-4=-112\r
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document.write( "and \r
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document.write( "u^2-3u-10=0\r
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document.write( "I got 5, -2 for this one. \n" );
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Algebra.Com's Answer #169649 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! You are correct about the second problem.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For the first one, add +4 to each side: \n" ); document.write( "3Z^2 =-108\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Divide both sides by 3:\r \n" ); document.write( "\n" ); document.write( "z^2 = -36\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Are you allowed to use complex numbers?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If NOT, then there are no real solutions. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If SO, then \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Dr. Robert J. Rapalje, Retired \n" ); document.write( "Seminole State College \n" ); document.write( "Altamonte Springs Campus \n" ); document.write( " |