Question

24.The value of discriminant of quadratic equation x² - 4x + 2 = 0 is

(a) 4

(b) 8

(c) 16

(d) none of these

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Answer 1

Answer:

(b) 8

Step-by-step explanation:

x² - 4x + 2 = 0

a = 1, b = -4, c = 2

Hence, D = b^2 - 4ac

D = (-4)^2 - 4(1)(2)

D = 16 - 8

D = 8