document.write( "Question 21752: x to the 2nd power +10x +10=0 Solve the equation by completing the square \n" ); document.write( "
Algebra.Com's Answer #10503 by algebrapro18(249)![]() ![]() ![]() You can put this solution on YOUR website! x^2+10x+10=0 \r \n" ); document.write( "\n" ); document.write( "well first you need to get the x's by them selves so subtract 10 from both sides \r \n" ); document.write( "\n" ); document.write( "x^2+10x=-10 \r \n" ); document.write( "\n" ); document.write( "now take 1/2 of 10 then square it and then add it to both sides \r \n" ); document.write( "\n" ); document.write( "x^2+10x+(1/2(10))^2=-10+(1/2(10))^2 \n" ); document.write( "x^2+10x+(5)^2 = -10 + (5)^2 \n" ); document.write( "x^2+10x+25 = -10 + 25 \r \n" ); document.write( "\n" ); document.write( "now take the square root of x^2 and 25 and combine like terms on the right side \r \n" ); document.write( "\n" ); document.write( "(x+5)^2=15 \r \n" ); document.write( "\n" ); document.write( "now take the square root of both sides \r \n" ); document.write( "\n" ); document.write( "x+5 = \n" ); document.write( "x = |