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anonymous

  • 5 years ago

What is the value of the discriminant of 2x2 + 3x – 14 = 0?

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  1. anonymous
    • 5 years ago
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    The discriminant of a quadratic is going to be b^2-4ac where the quadratic is noted as ax^2+bx+x=0

  2. anonymous
    • 5 years ago
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    correct that previous message; It should be ax^2+bx+c = 0

  3. anonymous
    • 5 years ago
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    So, in this case, a=2, b=3, and c=-14. Therefore, the discriminant is 3^2-4*2*(-14) = 9+104 = 113

  4. anonymous
    • 5 years ago
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    The important thing to note is that if the discriminant is negative, then there is no real solution to the quadratic. This can be inferred from the quadratic formula where x = (-b +/- sqrt(b^2-4ac))/(2a)

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