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Hey can you please help me posted picture of question
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Hey can you please help me posted picture of question

Hey can you please help me posted picture of question-example-1
User BraveSirFoobar
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1 Answer

7 votes
The correct answer is option D

The solution is shown below:


x^(2) +16 \\ \\ = x^(2) +(4)^(2) \\ \\ = x^(2) -(-1)(4)^(2) \\ \\ = x^(2) -i^(2) (4)^(2) \\ \\ = x^(2) -(4i)^(2) \\ \\ =(x+4i)(x-4i)
User Irongirl
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