document.write( "Question 395529: Can you help me rewrite this equation in quadratic form?
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document.write( "(x-(2+i))(x-(2-i))= 0 \n" );
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Algebra.Com's Answer #280691 by stanbon(75887) ![]() You can put this solution on YOUR website! (x-(2+i))(x-(2-i))= 0 \n" ); document.write( "---- \n" ); document.write( "Rearrange:\r \n" ); document.write( "\n" ); document.write( "((x-2)-i)((x-2)+i) = 0 \n" ); document.write( "----- \n" ); document.write( "(x-2)^2-i^2 = 0 \n" ); document.write( "--- \n" ); document.write( "(x-2)^2+1 = 0 \n" ); document.write( "--- \n" ); document.write( "x^2-4x+4+1 = 0 \n" ); document.write( "--- \n" ); document.write( "x^2-4x+5 = 0 \n" ); document.write( "---- \n" ); document.write( "Use Quadratic Formla: \n" ); document.write( "---- \n" ); document.write( "x = [4 +- sqrt(16-4*5)]/2 \n" ); document.write( "--- \n" ); document.write( "x = [4 +- sqrt(-4)]/2 \n" ); document.write( "--- \n" ); document.write( "x = [4+- 2i]/2 \n" ); document.write( "--- \n" ); document.write( "x = 2+i or x = 2-i \n" ); document.write( "======================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "========== \n" ); document.write( " |