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Pat R Ellery · Answer 1 · 2020-07-24T21:06:27+0000

Answer:

It is 8.

Explanation:

The discriminant of the equation ax^2 + bx + c = 0 is b^2 - 4ac.

So for -x^2 + 4x - 2 it is 4^2 - 4 * -1 * -2

= 16 - 8

= 8 (answer).