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)![]() ![]() You can put this solution on YOUR website! 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 \n" ); document.write( ". \n" ); document.write( "n = {-0.764, -5.236} \n" ); document.write( " \n" ); document.write( " |