Question

I honestly have no clue how to do these

Answer 1

Answer:

$-2^{2} -4(1)(5)$

so the answer would be c.

Step-by-step 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)