Question 1136617
X^2 + 2X + 3 = 0
X^2 + 2X = -3
x^2 + 2x + 1 = -2
(x+1)^2 = -2
x + 1 = +sqrt(-2), - sqrt(-2)
x = -1 + isqrt(2), -1 - isqrt(2)