document.write( "Question 974612: (4+3i)(7-3i) \n" ); document.write( "
Algebra.Com's Answer #596487 by algebrahouse.com(1659)![]() ![]() You can put this solution on YOUR website! (4 + 3i)(7 - 3i) \n" ); document.write( "= 4(7) + 4(-3i) + 3i(7) + 3i(-3i) {used foil method} \n" ); document.write( "= 28 - 12i + 21i - 9iČ {multiplied through} \n" ); document.write( "= 28 + 9i - 9(-1) {combined like terms and converted iČ to -1} \n" ); document.write( "= 28 + 9i + 9 {multiplied -9 by -1} \n" ); document.write( "= 37 + 9i {combined like terms} \n" ); document.write( " To ask a question, visit: www.algebrahouse.com \n" ); document.write( " |