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Evaluate: Σ21(2n + 8) = [?] HELP ME PLS
Question
Evaluate:
Σ21(2n + 8) = [?]
HELP ME PLS
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Mathematics
3 years
2021-09-03T21:51:45+00:00
2021-09-03T21:51:45+00:00 1 Answers
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Answers ( )
Answer:
42n+108
Step-by-step explanation:
21(2n+8)
42n+108