Probability second green = 7/19
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- A bag contains 5 red, 7 blue, and 8 green marbles. If two marbles are drawn at random without replacement, what is the probability both are green?
- Total marbles = 5 + 7 + 8 = 20
- Probability first green = 8/20
- Probability both green = (8/20) × (7/19) = 56/380 = 14/95
- Combine logs: log₂[(x + 3)(x − 1)] = 3
- x² + 2x − 3 = 8
