document.write( "Question 785337: (3+i)^3 supposes to write the expression in standard a+bi form, please help, thanks, susan \n" ); document.write( "
Algebra.Com's Answer #477483 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
Use of binomial theorem might be easiest, instead of performing each multiplication step between binomials.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%283%2Bi%29%5E3=3%5E3%2B3%2A3%5E2%2Ai%2B3%2A3%2Ai%5E2%2Bi%5E3\"
\n" ); document.write( "\"3%5E3%2B27i-9%2B%28-i%29\"
\n" ); document.write( "\"27%2B26i-9\"
\n" ); document.write( "\"highlight%2818%2B26i%29\"
\n" ); document.write( "
\n" );