document.write( "Question 890403: HELP! What is the fourth term in the expansion. (2z-3)^5 \n" ); document.write( "
Algebra.Com's Answer #538950 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "The formula is easier to remember this way:\r\n" );
document.write( "\r\n" );
document.write( "If you start counting with zero instead of with 1, the Rth term of\r\n" );
document.write( "\r\n" );
document.write( "(A+B)N is\r\n" );
document.write( "\r\n" );
document.write( "C(N,R)AN-RBR\r\n" );
document.write( "\r\n" );
document.write( "The 4th term if you count starting with with 1, is the 3rd term \r\n" );
document.write( "if you count starting with zero.\r\n" );
document.write( "\r\n" );
document.write( "(2z-3)5\r\n" );
document.write( "\r\n" );
document.write( "C(5,3)(2z)5-3(-3)3 =\r\n" );
document.write( "\r\n" );
document.write( "10(2z)2(-27) =\r\n" );
document.write( "\r\n" );
document.write( "-270(22z2) =\r\n" );
document.write( "\r\n" );
document.write( "-270(4z4) =\r\n" );
document.write( "\r\n" );
document.write( "-1080z2\r\n" );
document.write( "\r\n" );
document.write( "Edwin
\n" ); document.write( "
\n" );