If the roots of ax² + bx + c = 0 are real and equal, what is D?
Answer
D = 0
The correct answer is D = 0 — Real and equal roots occur when discriminant D = b² - 4ac = 0.
Step-by-step solution
- Real and equal roots occur when discriminant D = b² - 4ac = 0.
Concept tested: Nature of Roots
Published · How this solution was prepared and checked
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