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

question 11

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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Definitions:

Oligopeptide

An oligopeptide is a short chain of amino acids, typically having fewer than 20 residues, connected by peptide bonds.

Polypeptide

A linear organic polymer consisting of a large number of amino-acid residues bonded together in a chain, forming part of (or the whole of) a protein molecule.

Blueprint

A detailed technical drawing or plan used for the design and construction of buildings, machinery, or systems.

Protein

Large biomolecules or macromolecules that are made up of one or more chains of amino acid residues.