document.write( "Question 433387: Simplify each expression.\r
\n" ); document.write( "\n" ); document.write( "1.sqrt -81\r
\n" ); document.write( "\n" ); document.write( "2.(5-2i)(2+5i)\r
\n" ); document.write( "\n" ); document.write( "3.3+5i/2-4i \n" ); document.write( "

Algebra.Com's Answer #300435 by Gogonati(855) $\"\"$ $\"About$

You can put this solution on YOUR website!
1.

.\r
\n" ); document.write( "\n" ); document.write( "2. $\"%285-2i%29%2A%282%2B5i%29=10%2B25i-4i-10i%5E2=20%2B21%2Ai\"$ .\r
\n" ); document.write( "\n" ); document.write( "3.

.\r
\n" ); document.write( "\n" ); document.write( "Done. \n" ); document.write( "

\n" );