document.write( "Question 181891This question is from textbook
\n" ); document.write( ": x^2+10x+21=0 Please help factor this, thank you \n" ); document.write( "

Algebra.Com's Answer #136509 by nerdybill(7384) $\"\"$ $\"About$

You can put this solution on YOUR website!
x^2+10x+21=0
\n" ); document.write( ".
\n" ); document.write( "(x+3)(x+7) = 0
\n" ); document.write( ".
\n" ); document.write( "Thus:
\n" ); document.write( "x = {-3, -7}
\n" ); document.write( " \n" ); document.write( "

\n" );