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) ![]() You can put this solution on YOUR website! Determine the simplest polynomial that has real coefficients and zeroes at x=-2i and x=4 \n" ); document.write( "---- \n" ); document.write( "If the coefficients are Real, x = 2i is also a zero. \n" ); document.write( "---- \n" ); document.write( "Your Equation: \n" ); document.write( "f(x) = (x-2i)(x+2i)(x-4) \n" ); document.write( "---- \n" ); document.write( "= (x^2+4)(x-4) \n" ); document.write( "---- \n" ); document.write( "= x^3 -4x^2 + 4x - 16 \n" ); document.write( "=========================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |