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14 September, 13:24

The polynomial given below has roots?

2x^2+3x-2

A: two positive

B: two negative

C: one positive and one negative

D: two complex

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Answers (2)
  1. 14 September, 13:36
    0
    The answer is c

    Two positive and two negative
  2. 14 September, 13:40
    0
    X = (-b + / - √ (b²-4ac)) / (2a)

    x = (-3 + / - √ (3²-4*2 * (-2)) / (2*2) = (-3 + / - √ (9+16)) / 4

    x (1) = (-3+5) / 4=2/4=1/2

    x (2) = (-3-5) / 4=-2

    C: one positive and one negative
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