document.write( "Question 192443: find all zeros: f(x)=x^2+6x+11 \n" ); document.write( "
Algebra.Com's Answer #144485 by edjones(8007)![]() ![]() You can put this solution on YOUR website! x^2+6x+11=0 \n" ); document.write( "x^2+6x =-11 \n" ); document.write( "x^2+6x+9=+9-11 completing the square by (6/2)^2=9 \n" ); document.write( "(x+3)^2=-2 \n" ); document.write( "x+3=+-sqrt(-2) take sqrt of each side \n" ); document.write( "x=-3+sqrt(2)i, x=-3-sqrt(2)i There are no real number zeroes. \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |