Find All the Real Zeros of F(x) = 3x³ - $- \frac { 1 } { 3 }$

question 397

Multiple Choice

Find all the real zeros of f(x) = 3x³ - 9x² + 3x - 9.

• A)x = 3
• B)x = 3, \(- \frac { 1 } { 3 }\)
• C)x = \(\frac { 1 } { 3 }\) , \(- \frac { 1 } { 9 }\)
• D)x = ±1, 3
• E)x = 3, 1, -9

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