Factor by Grouping $15 x ^ { 4 } + 20 x ^ { 2 } - 12 x ^ { 2 } - 16$

question 59

Multiple Choice

Factor by grouping.
- $15 x ^ { 4 } + 20 x ^ { 2 } - 12 x ^ { 2 } - 16$

• A) \(\left( 5 x ^ { 2 } - 4 \right) \left( 3 x ^ { 2 } + 4 \right)\)
• B) \(\left( 5 x ^ { 2 } + 4 \right) \left( 3 x ^ { 2 } - 4 \right)\)
• C) \(\left( 15 x ^ { 2 } + 4 \right) \left( x ^ { 2 } - 4 \right)\)
• D) \(\left( 5 x ^ { 4 } - 4 \right) ( 3 x + 4 )\)

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