Factor the Expression Completely $x ^ { 2 } - y ^ { 2 } - 2 y - 1$

question 7

Multiple Choice

Factor the expression completely. If the expression is prime, so indicate. $x ^ { 2 } - y ^ { 2 } - 2 y - 1$

• A) \(( x - y + 1 ) ( x - y - 1 )\)
• B) \(( x + y - 1 ) ( x - y + 1 )\)
• C) \(( x + y + 1 ) ( x + y - 1 )\)
• D) \(( x + y + 1 ) ( x - y - 1 )\)
• E) prime

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