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A) \[[\,\,\,\,]=6,\,\Delta =4\]
B) \[[\,\,\,\,]=8,\Delta =2\]
C) \[[\,\,\,\,]=7,\Delta =3\]
D) \[[\,\,\,\,]=8,\,\Delta =6\]
Correct Answer: A
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