document.write( "Question 435900: solve the equation n^2+6n+4=0 by compleating the square \n" ); document.write( "
Algebra.Com's Answer #301633 by nerdybill(7384)\"\" \"About 
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n^2+6n+4=0
\n" ); document.write( "n^2+6n = -4
\n" ); document.write( "take 1/2 b-coefficient, square it, and add it to both sides:
\n" ); document.write( "n^2+6n+9 = -4+9
\n" ); document.write( "(n+3)(n+3) = 5
\n" ); document.write( "(n+3)^2 = 5
\n" ); document.write( "n+3 = sqrt(5)
\n" ); document.write( "n = +-sqrt(5) - 3
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\n" ); document.write( "n = {-0.764, -5.236}
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