Question

1
19. Find the roots of x2 – x + 2 = 0​

Answer 1

Answer:

x² - x + 2 = 0

x² - x = -2

(x)² - 2x1/2 = -2

(x)² - 2x1/2 + (1/2)² = -2 + (1/2)²

(x-1/2)² = -2 +1/4

(x-1/2)² = -7/4

```°°° Check Mark °°°``` here root 7 iota by two is plus minus

$x - \frac{1}{2} = \frac{ \sqrt{7}i }{2}$

$x = \frac{ \sqrt{7}i }{2} + \frac{1}{2}$

$x = \frac{ \sqrt{7}i \: + \: 1 }{2}$

so PLEASE first see the check mark on below top

ans is

$x = \frac{ \sqrt{7}i+ 1 }{2} \\ \\ or \: \\ \\ x = - \frac{ \sqrt{7}i \: + \: 1 }{2}$

I hope you understand

thank you