Answer:
81
Explanation:
discriminant is b² - 4ac where a is coefficient in front of x², b is coefficient in front of x and c is constant term.
a = -3, b = -3, c = 6
b² - 4ac
= (-3)² - 4(-3)(6)
= +9 - 4(-18)
= 9 + 4X18
= 9 + 72
= 81
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