document.write( "Question 173284: I need to simplify this problem(5-2i)^2 I do not know if I did it right but the answer I got was 25-16i was I close? \n" ); document.write( "
Algebra.Com's Answer #128110 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! (5-2i)^2\r \n" ); document.write( "\n" ); document.write( "Use Foil: \n" ); document.write( "(5-2i)(5-2i) \n" ); document.write( "F: 25 \n" ); document.write( "O: 5*-2i = -10i \n" ); document.write( "I: 5*-2i = -10i \n" ); document.write( "L: -2i*-2i = -4 \n" ); document.write( "-------------------- \n" ); document.write( "Combine to get: \n" ); document.write( "21 - 20i \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |