Find All the Real Zeros Of $f ( x ) = 4 x ^ { 3 } - 20 x ^ { 2 } + 17 x - 4$

question 378

Multiple Choice

Find all the real zeros of $f ( x ) = 4 x ^ { 3 } - 20 x ^ { 2 } + 17 x - 4$ .

• A)x = \(\frac { 1 } { 2 }\) , 4
• B)x = \(- \frac { 1 } { 2 }\) , \(- \frac { 1 } { 4 }\)
• C)x = \(\frac { 1 } { 4 }\) , -2
• D)x = \(\frac { 1 } { 2 }\) , \(- \frac { 1 } { 4 }\)
• E)x = \(\frac { 1 } { 2 }\) , -4

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