Question

solve by completing the square or factorization:
x^2+2x+3=0

Answer 1

do you know the website mathway..?

Answer 2

no

Answer 3

www.mathway.com ..?

Answer 4

no lemmee see that..

Answer 5

hey thankxx... that website is really helpful :) :)

Answer 6

glad to help.. xDDDD

Answer 7

nice web,,, @russeldano

Answer 8

is that website free?

Answer 9

nope

Answer 10

mean @insa

Answer 11

the website ain't free :/

Answer 12

lol... then what is the benefit of that...?

Answer 13

you can check the method of completing the square here.
http://www.mathsisfun.com/algebra/completing-square.html

Answer 14

lol at least u get the correct answer

Answer 15

hehe.. gee tnx.. im sharing what other people did to me.. xDDDD what did u mean free..?

Answer 16

\[x ^{2}+2x+3=0\]
\[x ^{2}+2x+(\frac{ 2 }{ 2 })^{2}+3-(\frac{ 2 }{ 2 })^{2}=0\]
\[(x+1)^{2}+3-1=0\]
\[(x+1)^{2}=-2\]
\[x+1=\pm \sqrt{-2}\]
\[x= \pm 2i-1\]