document.write( "Question 197475: simplify square root of 4x^2+12x+9 \n" ); document.write( "
Algebra.Com's Answer #148083 by edjones(8007)\"\" \"About 
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4x^2+12x+9
\n" ); document.write( "=(2x+3)^2
\n" ); document.write( "sqrt(4x^2+12x+9)
\n" ); document.write( "=2x+3
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