document.write( "Question 434938: How can i find the third-degree polynomial equation with rational coefficients that have the given number of roots of 3,2-i? Please and thank you! \n" ); document.write( "
Algebra.Com's Answer #301149 by stanbon(75887) ![]() You can put this solution on YOUR website! How can i find the third-degree polynomial equation with rational coefficients that have the given number of roots of 3,2-i? \n" ); document.write( "------- \n" ); document.write( "If the coefficients are rational, 2+i must also be a root. \n" ); document.write( "---- \n" ); document.write( "Equation: \n" ); document.write( "f(x) = (x-3)(x-(2-i))(x-(2+i)) \n" ); document.write( "-------- \n" ); document.write( "f(x) = (x-3)((x-2)+i)((x-2)-i) \n" ); document.write( "-------- \n" ); document.write( "f(x) = (x-3)((x-2)^2+1) \n" ); document.write( "--- \n" ); document.write( "f(x) = (x-3)(x^2-4x+5) \n" ); document.write( "---- \n" ); document.write( "f(x) = x^3-4x^2+5x-3x^2+12x-15 \n" ); document.write( "---- \n" ); document.write( "f(x) = x^3-7x^2+17x-15 \n" ); document.write( "================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |