Factor Completely $$49 y ^ { 4 } - 81$$ A) $\left( 7 y ^ { 2 } + 9 \right) ^ { 2 }$

question 146

Multiple Choice

Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
- $$49 y ^ { 4 } - 81$$

• A) \(\left( 7 y ^ { 2 } + 9 \right) ^ { 2 }\)
• B) prime
• C) \(\left( 7 y ^ { 2 } + 9 \right) \left( 7 y ^ { 2 } - 9 \right)\)
• D) \(\left( 7 y ^ { 2 } - 9 \right) ^ { 2 }\)

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