Factor Completely $$x ^ { 4 } - 81$$ A) $\left( x ^ { 2 } + 9 \right) ( x - 3 ) ( x + 3 )$

question 132

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$x ^ { 4 } - 81$$

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

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