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16 April, 16:15

What is the value of b^2 0 4ac for the following equation?

2x^2 0 2x 0 1 = 0

04

0

12

+4
Answers (1)
  1. 16 April, 16:45
    0
    2x^2 - 2x - 1 = 0 a = 2, b = - 2, c = - 1 b^2 - 4ac = (-2) ^2 - 4 (2) (-1) = 4 + 8 = 12

    so the answer is 12
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