Question

Does anyone know this?

Answer 1

Answer:-124

Explanation:

b^2 - 4ac

a = 7 b = -4 c = 5

-4^2 - 4*7*5

16 - 4*35

16 - 140

-124

Answer 2

-124

Explanation:

The equation for a discriminant is:

`b^(2) -4ac`

So for

`7x^(2) -4x +5=0`

a = 7 b = - 4 c = 5

Plug values into the equation.

`(-4)^(2) -4(7)(5)`

16 - 140 = -124