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Find All the Real Zeros Of f(x)=4x35x2+4x5f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 4 x - 5

Question 59

Multiple Choice

Find all the real zeros of f(x) =4x35x2+4x5f ( x ) = 4 x ^ { 3 } - 5 x ^ { 2 } + 4 x - 5 .


A) x=54,45x = \frac { 5 } { 4 } , - \frac { 4 } { 5 }
B) x=4,1,5x = 4,1 , - 5
C) x=±1,54x = \pm 1 , \frac { 5 } { 4 }
D) x=54x = \frac { 5 } { 4 }
E) x=14,15x = \frac { 1 } { 4 } , - \frac { 1 } { 5 }

Correct Answer:

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