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Question
Choose correct alternatives:
Auxiliary equation of 2x2 + 3xy - 9y2 = 0 is
Options
2m2 + 3m - 9 = 0
9m2 - 3m - 2 = 0
2m2 - 3m + 9 = 0
- 9m2 - 3m + 2 = 0
Solution
Auxiliary equation of 2x2 + 3xy - 9y2 = 0 is 9m2 - 3m - 2 = 0.
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