document.write( "Question 582098: how do you solve: (1-4i)/(2+3i)\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "i indicates a number that is imaginary ( sqrt of -1)\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "thanks so much \n" );
document.write( "
Algebra.Com's Answer #371935 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! how do you solve: (1-4i)/(2+3i) \n" ); document.write( "------- \n" ); document.write( "You don't solve it. There's no variable to solve for. \n" ); document.write( "The goal is to rationalize the denominator, ie, get the i out of it. \n" ); document.write( "--------- \n" ); document.write( "(1-4i)/(2+3i) \n" ); document.write( "Multiply the NUM and DEN by the conjugate of the DEN, 2-3i \n" ); document.write( "= (1-4i)(2-3i)/((2+3i)(2-3i)) \n" ); document.write( "= (2 - 11i +12i^2)/(4 - 9i^2) \n" ); document.write( "= (2 - 11i - 12)/(4 + 9) \n" ); document.write( "= (-10 - 11i)/13 \n" ); document.write( "or -10/13 - i(11/13) \n" ); document.write( " \n" ); document.write( " |