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17 April, 07:49

Determine the number of real solutions of - 2x2 + 5x - 3 = 0.

a) 0

b) 1 (double root)

c) 2

+4
Answers (1)
  1. 17 April, 08:09
    0
    -2x^2 + 5x - 3 = 0

    Find the discriminate:

    In the given formula a = - 2, b = 5 and c = - 3

    The discriminate is found using the formula b^2 - 4 (ac)

    Replace the letters with their values:

    5^2 - 4 (-2*-3)

    25 - 4*6

    25-24 = 1

    When the discriminate is greater than or equal to 0, there are two real solutions.

    The answer is c) 2
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