document.write( "Question 908475: Please, help me how to solved the quadratic equation: x²+10x=-21 \n" ); document.write( "
Algebra.Com's Answer #551058 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
bring to one side
\n" ); document.write( "x²+10x+21
\n" ); document.write( "You want factors of 21 which add up to 10
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