document.write( "Question 503042: a^2+10a+21=0 \n" ); document.write( "
Algebra.Com's Answer #339061 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
a^2+10a+21=0
\n" ); document.write( "(a+7)(a+3)=0
\n" ); document.write( "a = {-7, -3}
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