Multiply the Conjugates $$( 9 + \sqrt { 5 } ) ( 9 - \sqrt { 5 } )$$

question 229

Multiple Choice

Multiply the conjugates.
- $$( 9 + \sqrt { 5 } ) ( 9 - \sqrt { 5 } )$$

• A) \(86 - 18 \sqrt { 5 }\)
• B) \(86 + 18 \sqrt { 5 }\)
• C) 86
• D) 76

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Definitions:

Sternum

A flat bone located in the center of the chest, connected to the ribs via cartilage, forming a major part of the rib cage and protecting vital organs in the thorax.

Mandibular Fossa

A depression in the temporal bone that forms the socket for the condylar process of the mandible, contributing to the temporomandibular joint.

Temporal

Related to time or also pertaining to the temples of the head near the temporal bones of the skull.

Sphenoid

A butterfly-shaped bone at the base of the skull, behind the eyes, touching on various important structures and enclosing the pituitary gland.