document.write( "Question 635489: Hello! I need help finding the exact roots of this polynomial
\n" ); document.write( "g(x)=2x^4-5x^3+9x^2-20x+4 if 2i is a zero
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Algebra.Com's Answer #400377 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "g(x)=2x^4-5x^3+9x^2-20x+4 
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document.write( " 2i is a zero, therefore so is -2i and  (x-2i)(x+2i) = x^2 + 4\r
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document.write( "x^2 + 4 |2x^4-5x^3+9x^2-20x+4   \r
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document.write( "gives: 2x^2  -5x + 1
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document.write( " the other two roots \n" );
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