Question

I need help pleeeeeeeeeease

Answer 1

D. 140

Explanation:

D = b² - 4ac

So, let's identify our values.

a = 2

b = -10

c = -5

Now, we can plug in our values.

D = -10² - 4(2)(-5)

D = 100 + 40

D = 140

Answer 2

D. 140

Explanation:

In the equation,
`ax^2+bx+c=0,` the discriminant can be found with
`b^2-4ac`.

In this equation,

the discriminant would be:
`(-10)^2-4(2)(-5)=100+40=140`