Question

What are the possible values of x2 + 3x + 3 = 0?

OA -2 t i
.
OB.
?
-3 + V12
2
+
2
OC -3 13
OD. 3 VB
c.
.
+
2

Answer 1

Explanation:

I can't really read or make out what is intended by the choices, but I can give you an answer (I hope).

a = 1

b = 3

c = 3

x1 = (-b +/- sqrt(b^2 - 4ac) )/2a

x1 = (-3 +/- sqrt(3^2 - 4*1*3)) /2(1)

x1 = (-3 +/- sqrt(9 - 12) )/2

x1 = (-3 +/- sqrt(-3) ) / 2

x1 = -1.5 + sqrt(3)*i/2

x2 = -1.5 - sqrt(3)i / 2