No, the answer is not \(3\sqrt{3}\)
Algebra
Level
5
Real numbers \(a\), \(b\), and \(c\) satisfy \(a^2 + b^2 + c^2 = 9\).
Find the maximum value of \(2(a + b + c) - abc\) to 2 decimal places.
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Thành Đạt Lê