document.write( "Question 87643: Please help me to solve the following problems:\r
\n" );
document.write( "\n" );
document.write( "76) 3/2y-3/2y+4\r
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( "82) 4/3n+2/n+1+2/n^2+n\r
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #63565 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! solve the following problems: \n" ); document.write( "76) 3/2y-3/2y+4 \n" ); document.write( "3/(2y) - 3/(2y+4) \n" ); document.write( "You need a lcd (least common denominator): \n" ); document.write( "That would be 2y(2y+4) \n" ); document.write( "Rewrite each fraction with that lcd as its denominator: \n" ); document.write( "[3(2y+4)]/lcd - [3(2y)]/lcd \n" ); document.write( "Combine the numerators to get: \n" ); document.write( "= [12y+12]/lcd \n" ); document.write( "Simplify: \n" ); document.write( "= 12(y+1)/(2y)(2y+4) \n" ); document.write( "= 12(y+1)/[4y(y+2)] \n" ); document.write( "= 3(y+1)/y(y+2) \n" ); document.write( "=================\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "82) 4/(3n) + 2/(n+1) + 2/(n^2+n) \n" ); document.write( "lcd = 3n(n+1) \n" ); document.write( "Rewrite: \n" ); document.write( "= 4(n+1)/lcd + 2(3n)/lcd + 2(3)/lcd \n" ); document.write( "= [4n+4+6n+6]/lcd \n" ); document.write( "= [10(n+1)]/[3n(n+1)] \n" ); document.write( "= 10/3n \n" ); document.write( "============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |