Add the Proper Constant to Each Binomial So That the Resulting

question 161

Multiple Choice

Add the proper constant to each binomial so that the resulting trinomial is a perfect square trinomial. Then factor the
trinomial.
- $x ^ { 2 } - 4 x +$ ______

• A) \(x ^ { 2 } - 4 x + ( - 16 ) = ( x - 4 ) ^ { 2 }\)
• B) \(x ^ { 2 } - 4 x + \underline { 4 } = ( x - 2 ) ^ { 2 }\)
• C) \(x ^ { 2 } - 4 x + ( - 4 ) = ( x - 2 ) ^ { 2 }\)
• D) \(x ^ { 2 } - 4 x + \underline { 16 } = ( x - 4 ) ^ { 2 }\)

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Definitions:

Triglycerides

A type of fat (lipid) found in your blood, made up of a glycerol molecule attached to three fatty acids, used by the body for energy or stored as fat.

Phospholipids

A class of lipids that are a major component of all cell membranes; they form bilayers that function as barriers to ions and molecules.

Macromolecule

Large molecules necessary for life, including proteins, nucleic acids, carbohydrates, and lipids.

Compound

A substance formed from two or more elements chemically united in fixed proportions.