Q. Solve $x^{2} + 2 = 0$

1594 262 Complex Numbers and Quadratic Equations Report Error

A

$\pm 2 i$

63%

B

$\pm i$

12%

C

$\pm 3 i$

9%

D

$\pm 2 i$

16%

Solution:

We have, $x^{2} + 2 = 0$
$\Rightarrow x^{2} = - 2$
$x = \pm - 2$
$= \pm 2 i$