document.write( "Question 885256: Simplify 7x^2+12x-x^2-40x \n" ); document.write( "
Algebra.Com's Answer #535007 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
7x^2+12x-x^2-40x\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "7x^2-x^2+12x-40x\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "(7x^2-x^2)+(12x-40x)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "(6x^2)+(-28x)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "6x^2-28x\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So the expression simplifies to 6x^2-28x
\n" ); document.write( "
\n" );