Question

solve x2-6x+4 =0 by quadratic formula​

Answer 1

According to quadratic formula

Ꭰ = b² - 4ac

D = (-6)² - 4 × 1 × 4

D = 36 - 16

D = 20

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Answer 2

Answer:

Step-by-step explanation:

D^2 = b^2 - 4ac

= (-6)^2 - 4(4)(1)

= 36 - 16

D = 2 (10)^1/2