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Please answer with steps as soon as possible​
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Please answer with steps as soon as possible​

Please answer with steps as soon as possible​-example-1
User Nick Vanderhoven
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1 Answer

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(9m + 7n) ^(2) - (9m - 7n) ^(2) \\ = (9m + 7n + 9m - 7n)(9m + 7n - 9m + 7n) \\ = 18m * 14n \\ = 252mn

Answer:

C. 252 mn

Hope you could understand.

If you have any query, feel free to ask.

User Zachary Schroeder
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