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

1 answer:

5 0

Answer:

=85

Step-by-step explanation:

I'm pretty sure I'm correct

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ddd [48]

The answer is B.

90-73=13

And what makes it one side replicates to the other side.

This making it 13.

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grin007 [14]

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Gemiola [76]

Answer:

190 cm²

Step-by-step explanation:

((12 + 26) ÷ 2) × 10

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190 cm²

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