Perform the Desired Operation $$( 5 + 2 i ) ( 5 - 2 i )$$

question 144

Multiple Choice

Perform the desired operation. Write the answer in the form a + bi.
- $$( 5 + 2 i ) ( 5 - 2 i )$$

• A) \(25 - 4 \mathrm { i } ^ { 2 }\)
• B) \(25 - 4 \mathrm { i }\)
• C) 29
• D) 21

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