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/sci/ - Science & Math

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>> No.11284777 [View]
File: 3 KB, 553x38, meessa retardo.png [View same] [iqdb] [saucenao] [google]
11284777

hi i need to get back into math for some general gov exam
havent done math since early highschool back 10 years ago
where does the first 2n come from here?
what rule am i missing
tyty

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