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Mandarinka [93]
3 years ago
12

Simplify the expression (9 + 2i)(9 − 2i): 81 − 18i 81 + 18i 77 85

Mathematics
1 answer:
guajiro [1.7K]3 years ago
7 0

Answer:

Answer is 85. Can't simplify it anymore

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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3 years ago
If Mary is two years old and her sister is half of her age, how old is her sister
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Dafna1 [17]

Answer:

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Step-by-step explanation:

23-x=142

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