Question

one of the roots of quadratic equation x²-4x+5=0​

Answer 1

Step-by-step explanation:

The quadratic formula is x=

2a

−b±

b

2

−4ac

Here a=1,b=4,c=5

x=

2

−4±

4

2

−4(1)(5)

x=

2

−4±

−4

x=−2±i