document.write( "Question 1048912: x^2 + ix + 2 = 0
\n" ); document.write( "I'm supposed to be finding the roots of the equation
\n" ); document.write( "\"i\" is a complex number
\n" ); document.write( "My answer was x= (-i+/-3)/2
\n" ); document.write( "The correct answer was -2i,i
\n" ); document.write( "Where did I go wrong \n" ); document.write( "

Algebra.Com's Answer #664477 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x%5E2+%2B+ix+%2B+2+=+0\"$ \r
\n" ); document.write( "\n" ); document.write( "use quadratic formula:\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+%2B-+sqrt%28+i%5E2-4%2A1%2A2+%29%29%2F%282%2A1%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+%2B-+sqrt%28+-1-8+%29%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+%2B-+sqrt%28+-9+%29%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+%2B-+3i%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( "solutions:\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+%2B+3i%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+2i%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x+=+i%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-i+-+3i%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+=+%28-4i%29%2F2+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x+=+-2i%29+\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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