Question

Solve the quadratic equation by completing the sqaure.
x^2+12x+13=0

Answer 1

-6 - sqrt23 and sqrt (23)- 6

Answer 2

\[x^2+12x+13=0\]
\[x^2+12x=-13\]
\[x^2+12x+36=-13+36\]
\[(x+6)^2=23\]
\[x+6=\pm \sqrt{23}\]
\[x=-6\pm \sqrt{23}\]