Find All the Real Zeros Of $f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 4 x - 5$

question 59

Multiple Choice

Find all the real zeros of $f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 4 x - 5$ .

• A) \(x = \frac { 5 } { 4 } , - \frac { 4 } { 5 }\)
• B) \(x = 4,1 , - 5\)
• C) \(x = \pm 1 , \frac { 5 } { 4 }\)
• D) \(x = \frac { 5 } { 4 }\)
• E) \(x = \frac { 1 } { 4 } , - \frac { 1 } { 5 }\)

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