Factor Out the Greatest Common Factor $21 x ^ { 4 } - 9 x ^ { 3 } + 15 x ^ { 2 }$

question 92

Multiple Choice

Factor out the greatest common factor.
- $21 x ^ { 4 } - 9 x ^ { 3 } + 15 x ^ { 2 }$

• A) \(3 x ^ { 2 } \left( 7 x ^ { 2 } - 3 x + 5 \right)\)
• B) \(x ^ { 2 } \left( 21 x ^ { 2 } - 9 x + 15 \right)\)
• C) \(3 x \left( 7 x ^ { 3 } - 3 x ^ { 2 } + 5 x \right)\)
• D) \(3 \left( 7 x ^ { 4 } - 3 x ^ { 3 } + 5 x ^ { 2 } \right)\)

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