A. 0 / 0
ExplanationStep 1: Discriminant D = b² - 4ac. Step 2: D = (-4)² - 4×1×4 = 16 - 16 = 0. Step 3: If D is zero then roots are equal.
Step 1: Discriminant D = b² - 4ac होता है। Step 2: D = (-4)² - 4×1×4 = 16 - 16 = 0। Step 3: D zero हो तो roots equal होते हैं।
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