document.write( "Question 937988: I'm trying to figure out how to find \"Complex Zeros of Quadratic Functions\" but the Holt McDougal video lesson isn't helping whatsoever and I've researched as much as I could. I'm trying to find the zeros of \"f(x)=x²+2x+3\" and the video says the answer is x=6+2i√3. This involves imaginary numbers. \n" ); document.write( "
Algebra.Com's Answer #571352 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "I'm trying to figure out how to find \"Complex Zeros of Quadratic Functions\" but the Holt McDougal video lesson isn't helping whatsoever and I've researched as much as I could. I'm trying to find the zeros of \"f(x)=x²+2x+3\" and the video says the answer is x=6+2i√3. This involves imaginary numbers.
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document.write( "\"f%28x%29+=+x%5E2+%2B+2x+%2B+3\"
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document.write( "Using the QUADRATIC EQUATION formula: \"x+=+%28-+b+%2B-+sqrt%28b%5E2+-+4ac%29%29%2F%282a%29\", and with:
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document.write( "a being 1; b being 2; and c being 3, \"x+=+%28-+b+%2B-+sqrt%28b%5E2+-+4ac%29%29%2F%282a%29\" becomes: 
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document.write( "\"x+=+%28-+2+%2B-+sqrt%28%282%29%5E2+-+4%281%29%283%29%29%29%2F%282%281%29%29\"
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document.write( "\"x+=+%28-+2+%2B-+sqrt%284+-+12%29%29%2F2\"
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document.write( "\"x+=+%28-+2+%2B-+sqrt%28-+8%29%29%2F2\"
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document.write( "\"x+=+%28-+2+%2B-+sqrt%28-+1+%2A+2%5E2+%2A+2%29%29%2F2\"
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document.write( "\"x+=+%28-+2+%2B-+2i+%2A+sqrt%282%29%29%2F2\" ------ \"sqrt%28-+1%29+=+i\" and \"sqrt%282%5E2%29+=+2\"
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document.write( "\"x+=+%282%28-+1+%2B-+i%2Asqrt%282%29%29%29%2F2\"
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document.write( "\"x+=+%28cross%282%29%28-+1+%2B-+i%2Asqrt%282%29%29%29%2Fcross%282%29\"
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document.write( "\"highlight_green%28x+=+-+1+%2B-+sqrt%282%29%2Ai%29\"
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document.write( "This is the correct answer, but is nowhere close to what you claim the answer is. You need to re-check the problem!! \n" );
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