Armenia Mathematics Unified Exam Practice Questions - Unified Entrance Examination - Mathematics (Մաթեմատիկա) Exam

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For what values of the parameter 'a' does the quadratic equation x² - 2(a - 1)x + (a + 5) = 0 have two distinct real roots?

a < -1 or a > 4 -1 < a < 4 a > 4 a <= -1 or a >= 4

Correct Answer:

a < -1 or a > 4

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