document.write( "Question 4622: What is (4 - 3i)^2 \n" ); document.write( "

Algebra.Com's Answer #2142 by longjonsilver(2297) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"%284+-+3i%29%5E2\"$ is $\"%284-3i%29%284-3i%29\"$ which can be multiplied out to give $\"16-12i-12i%2B9i%5E2\"$ --> $\"16-24i%2B9i%5E2\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now $\"i%5E2+=+-1\"$ , so we can write $\"16-24i-9\"$ , which becomes $\"7-24i\"$ .\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "jon.
\n" ); document.write( " \n" ); document.write( "

\n" );