document.write( "Question 685086: Determine the simplest polynomial that has real coefficients and zeroes at x=-2i and x=4 (multiply it out) \n" ); document.write( "
Algebra.Com's Answer #424330 by stanbon(75887)\"\" \"About 
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Determine the simplest polynomial that has real coefficients and zeroes at x=-2i and x=4
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\n" ); document.write( "If the coefficients are Real, x = 2i is also a zero.
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\n" ); document.write( "Your Equation:
\n" ); document.write( "f(x) = (x-2i)(x+2i)(x-4)
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\n" ); document.write( "= (x^2+4)(x-4)
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\n" ); document.write( "= x^3 -4x^2 + 4x - 16
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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