document.write( "Question 68798: Perform the indicated operation.
\n" ); document.write( "3/2b - 5/3b^3 \n" ); document.write( "
Algebra.Com's Answer #49053 by rmromero(383)\"\" \"About 
You can put this solution on YOUR website!
\r\n" );
document.write( "Addition and Subtraction of Rational Expression must have the same denominator.\r\n" );
document.write( "\"3%2F2b++-++5%2F3b%5E3\"\r\n" );
document.write( "\r\n" );
document.write( "Since 2b and 3b^3 are not the same, we are going to find the LCD.\r\n" );
document.write( "\r\n" );
document.write( "Let us get the prime factor for:\r\n" );
document.write( "2b   = 2*  b\r\n" );
document.write( "3b^3 =   3*b*b*b\r\n" );
document.write( "LCD  = 2*3*b*b*b = 6b^3\r\n" );
document.write( "\r\n" );
document.write( "Rewrite an equivalent expressions using the LCD.\r\n" );
document.write( "\r\n" );
document.write( "\"%283%2A3b%5E2%29%2F6b%5E3++-++%285%2A2%29%2F6b%5E3\"\r\n" );
document.write( "\r\n" );
document.write( "\"9b%5E2%2F6b%5E3+-+10%2F6b%5E3\"\r\n" );
document.write( "\r\n" );
document.write( "Since the denominator are the same, you can subtract the expressions.\r\n" );
document.write( " \r\n" );
document.write( "\"%289b%5E2+-+10%29%2F6b%5E3\"
\n" ); document.write( "
\n" );