Factor the Sum or Difference of Two Cubes
- $27 x ^ { 3 } - 1$

question 255

Multiple Choice

Factor the Sum or Difference of Two Cubes
- $27 x ^ { 3 } - 1$

• A) \(( 3 x - 1 ) \left( 9 x ^ { 2 } + 3 x + 1 \right)\)
• B) \(( 3 x - 1 ) \left( 9 x ^ { 2 } + 1 \right)\)
• C) \(( 3 x + 1 ) \left( 9 x ^ { 2 } - 3 x + 1 \right)\)
• D) prime

---

Definitions:

Multifactor Authentication

A security system requiring more than one method of authentication from independent categories of credentials to verify the user's identity.

Password/PIN

Security measures used to protect access to devices and accounts, consisting of a secret series of characters (password) or numbers (PIN) known only to the user.

Smart Card

A small ID-size card that can store data, be encrypted, and swiped through and/or interact wirelessly with a smart card reader. Examples of smart cards are identification, medical, credit, and access card.

Spear Phishing

A targeted attempt to steal sensitive information through email by pretending to be a trusted entity, aiming specifically at an individual or organization.