document.write( "Question 632492: remove grouping symbolys if necessary and simplify\r
\n" ); document.write( "\n" ); document.write( "4x^4-7x^3-12x^4+6x^3
\n" ); document.write( "

Algebra.Com's Answer #398319 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( " \n" ); document.write( "
\n" );