What multiplies to 3 and adds to 2

There is no pair of real numbers that can do that job.

The two numbers that CAN are ...

       1 + √2 i
and
       1 -  √2 i

The ' i ' is the symbol used to stand for the square root of  -1 .

(Yes, I know ... Negative numbers don't have square roots. 
But there's a whole section of math built on the idea of the
square root of -1, and the symbol most often used to represent
that is ' i ' ... for "imaginary".)