Question 1056393
.
Complex Number: Solve the equation 2x^2 + 2 = 0.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


<pre>
2x^2 + 2 = 0.

It is equivalent to 

2x^2 = -2

which is equivalent to

x^2 = -1,

which has two solution in complex numbers

x = i   and   x = -i.

<U>Answer</U>. the solutions are i and -i.
</pre>