Find All the Real Zeros of the Polynomial Function $f ( x ) = x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20$

question 23

Multiple Choice

Find all the real zeros of the polynomial function $f ( x ) = x ^ { 3 } + 5 x ^ { 2 } - 4 x - 20$ and determine the multiplicity of each.

• A) \(x = 2\) , multiplicity 2; \(x = - 5\) , multiplicity 1
• B) \(x = 2\) , multiplicity 1; \(x = - 2\) , multiplicity 1; \(x = - 5\) , multiplicity 1
• C) \(x = - 5\) , multiplicity 2; \(x = - 2\) , multiplicity 1
• D) \(x = - 2\) , multiplicity 1; \(x = 5\) , multiplicity 1; \(x = - 5\) , multiplicity 1
• E) \(x = - 5\) , multiplicity 3

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