Question

I honestly have no clue how to do these

Answer 1

`-2^(2) -4(1)(5)`

so the answer would be c.

Explanation:

The discriminant is the following equation:

`b^(2) -4ac`

You just simply plug in the values of the coefficients.

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

a = 1 (first terms coefficient)

b = -2 (second terms coefficient)

c = 5 (last terms coefficient)