Roots of a equation with complex numbers

[subopolois]

Homework Statement

how do i find the roots of this: x^2-(2-1)x+(3-i)=0

Homework Equations

-b+-sqrtb^2-4ac/2a (quardaric equation)

The Attempt at a Solution

 

[Defennder]

What have you done so far?

And why did you write it as "(2-1)x" and not "x"? Did you mean "(2-i)x" instead? Why can't you just apply the formula?

 

[subopolois]

What have you done so far?

And why did you write it as "(2-1)x" and not "x"? Did you mean "(2-i)x" instead? Why can't you just apply the formula?

and what formula would that be?

 

[Dick]

and what formula would that be?

Use the 'quadratic equation'.

 

[HallsofIvy]

The quadratic formula that YOU gave in your first post! Be careful about taking the square root. That's the only "hard" part.