Question

WHICH COULD BE THE VALUE OF x when 4+3x is a complex number?

2^-2
2
i

Answer 1

The first thing you should know is that by definition complex numbers in their generic form are given by:
a + bi
We have then that in this case:
a = 4
b = 3
x = i
Answer:
The value of x when 4 + 3x is a complex number is:
i (option 3)