# Roots of a equation with complex numbers

## 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)

## Answers and Replies

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Defennder
Homework Helper
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?

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
Science Advisor
Homework Helper
and what formula would that be?
Use the 'quadratic equation'.

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