What is - 2x^ - 5x + 5 + 0 using quadratic formula

x = - 5 + √65/2 or

x = - 5 - √65/2

Step-by-step explanation:

-2x² - 5x + 5 = 0

2x² + 5x - 5 = 0

Here,

a = 2

b = 5

c = - 5

Now,

Discriminant

D = b² - 4ac

= (5) ² - 4 (2) (-5)

= 25 + 40

= 65

D = 65 > 0

Then,

x = - b + -√b² - 4ac/2a

x = - 5 + -√ (5) ² - 4 (2) (-5) / 2 (2)

= - 5 + -√25 + 40/4

= - 5 + -√65/4

= - 5 + -√65/2

x = - 5 + √65/2 or x = - 5 - √65/2