Multiply by Using the Rule for the Square of a Binomial

question 121

Multiple Choice

Multiply by using the rule for the square of a binomial.
- $$\left( 9 x + \frac { 1 } { 9 } \right) ^ { 2 }$$

• A) \(81 x ^ { 2 } + x + \frac { 1 } { 81 }\)
• B) \(81 x ^ { 2 } + 2 x + \frac { 1 } { 81 }\)
• C) \(81 x ^ { 2 } + \frac { 1 } { 81 }\)
• D) \(81 x ^ { 2 } + \frac { 2 } { 9 } x + \frac { 1 } { 81 }\)

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