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Chapter 12
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Lesson 12.1.1
> Problem 12-11
12-11.
Simplify.
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(2 + 3
i
)(2 − 3
i
) + (2 + 3
i
)
2
Hint (a):
4 − (−9) + 4 + 12
i
+ (−9)
Answer:
8 + 12
i
Hint (b):
Answer (b):
