Question

1. One of the roots of quadratic equation x2-4x+5=0 is
al 2+i
b) 2-i
c) 2-3i

d) 2+3i​

Answer 1

Answer:

The a and b are both the roots of the quadratic equation.I have solved the sum and attached it.Mark as brainly if it's useful

Answer 2

i + 2

Step-by-step explanation:

here a = 1 , b = -4 , c = 5

$\frac{- b + \sqrt{} b { \\ \:}^{2} \: - \: 4ac \\ }{2a} it \: is \: eqution \: 1$

$\frac{- b - \sqrt{} b { \\ \:}^{2} \: - \: 4ac \\ }{2a} \: it \: is \: equation \: 2$

$\frac{4 \ + \sqrt{} {16}^{} - 20 }{2} = \frac{4 + \sqrt{ - 4} }{2} = \frac{2(2 + i)}{2} = 2 + i$