Question

What is the discriminant D of the equation? n2+2n−2=0

Answer 1

$\bf \begin{array}{llcccll} y=& 1 n^2& +2n& -2\\ &\uparrow &\uparrow &\uparrow \\ &a&b&c \end{array} \\\\\\ discriminant\implies b^2-4ac\implies (2)^2-4(1)(-2)$

Answer 2

The answer is actually 12 :3

I just took the quiz and had the same question!