document.write( "Question 882916: What is the factor of 3x^2+21? \n" ); document.write( "
Algebra.Com's Answer #533190 by Fombitz(32388)\"\" \"About 
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\"3x%5E2%2B21=3%28x%5E2%2B7%29=3%28x%2Bsqrt%287%29i%29%28x-sqrt%287%29i%29\"
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