A) 4
B) -4
C) 0
D) -2
Correct Answer: A
Solution :
Since the roots are coincident, \[219\times =657\]\[3\times =219\] \[\text{1}0\text{32 }=\text{ 4}0\text{8 }\times \text{ 2 }+\text{ 216}\]
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