Multiply
- $\left( x ^ { 2 } - 3 b \right) \left( x ^ { 2 } + 3 b \right)$

question 68

Multiple Choice

Multiply.
- $\left( x ^ { 2 } - 3 b \right) \left( x ^ { 2 } + 3 b \right)$

• A) \(x ^ { 4 } - 6 x ^ { 2 } b + 9 b ^ { 2 }\)
• B) \(x ^ { 4 } + 6 x ^ { 2 } b + 9 b ^ { 2 }\)
• C) \(x ^ { 4 } - 9 b ^ { 2 }\)
• D) \(x ^ { 2 } - 9 b ^ { 2 }\)

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