Problem 79 of 7
Simplify complex expression (3+2i)i^7 + (1-i)(2+i).
Hints
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combine operations and simplify powers of i.
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Expression must require multiple complex-number operations.
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Correct
Your answer is equivalent to the expected form.
Solution
Walkthrough
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1. Simplify powers of i first when useful.
2. Distribute or multiply complex factors.
3. Combine real and imaginary terms into standard form.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Stopping before combining real and imaginary parts.