How do you solve using the quadratic formula #x^2-4x+10=0#?
Given a quadratic equation of the form
the quadratic roots can be evaluated using the formula
This equation has no Real solutions
but if we are allowed Complex solutions:
You notice the 1st degree coefficient is even, so you can use the direct formula
So you know there are no solutions in ℝ, and you have the complex conjugated solutions