document.write( "Question 697482: What is the quadratic equation that has a one root of 1+2i?\r
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document.write( "my work: \r
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document.write( "(1+2i)+(1-2i)= 2
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document.write( "(1+2i)(1-2i)= =1+4=5
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document.write( "a=1 b=-2 c=5\r
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document.write( "I'm not sure if i found the answer correctly. \n" );
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Algebra.Com's Answer #430051 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! You have the correct answer. I would have gone a different route, but you did it correctly. Nice work. \n" ); document.write( " |