Answer:
108.
Step-by-step explanation:
Comparing the given equation with the general form:
ax^2 + bx + c = 0 ,
-2x^2 + 6x + 13 = 0 .
We see that a = -2, b = 6 and c = 13.
So the discriminant
= b^2 - 4ac
= (-2)^2 - (4 *-2 * 13)
= 4 - (-104)
= 4 + 104
= 108 (answer).
