Use Any Method to Factor $x ^ { 2 } + 18 x + 81$

question 72

Multiple Choice

Use any method to factor $x ^ { 2 } + 18 x + 81$

• A) \(( x - 9 ) ( x - 9 )\)
• B) \(( x + 9 ) ( x - 9 )\)
• C) \(( x + 3 ) ( x + 27 )\)
• D) \(( x - 3 ) ( x - 27 )\)
• E) \(( x + 9 ) ( x + 9 )\)

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Definitions:

Primitive Groove

A feature seen in the early embryonic stage of some animals, marking the beginning of the development of the central nervous system.

Organogenesis

Organogenesis is the process during embryonic development in which organs are formed from the three primary germ layers: the ectoderm, mesoderm, and endoderm.

Embryonic Development

The process by which an embryo forms and develops, initiating from a single cell and resulting in a fully formed organism through cellular division, differentiation, and morphogenesis.

Three-Layered Embryo

Also known as the gastrula, it refers to an early stage in embryonic development where the embryo consists of three primary layers: ectoderm, mesoderm, and endoderm.