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The discriminant of 2x^2 + 5x + 3 = 0 equals
A9
B0
C1
D25
Answer & Solution
Correct answer: C. 1
1. Here a = 2, b = 5, c = 3.
2. D = b^2 - 4ac = 25 - 24.
3. So D = 1.
4. Hence the discriminant is 1.
_Source: Selina Concise Mathematics Class 10, Ch 5 Quadratic Equations (Mistral OCR'd PDF), section on discriminant_
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