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24 February, 12:28

What is the value of the discriminant, b2 - 4ac, for the quadratic equation 0 = - 2x2 - 3x + 8, and what does it mean about the number of real solutions the equation has?

The discriminant is - 55, so the equation has 2 real solutions.

The discriminant is - 55, so the equation has no real solutions.

The discriminant is 73, so the equation has 2 real solutions.

The discriminant is 73, so the equation has no real solutions.

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  1. 24 February, 14:17
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    Hello:

    -2x² - 3x + 8

    delta = (-3) ²-4 (-2) (8) = 9+64 = 73 ... (delta) > 0

    The discriminant is 73, so the equation has 2 real solutions
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