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What is the pattern rule for 9 18 21?

Updated: 8/19/2019
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12y ago

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t(n) = 3(-n2 + 6n - 2) for n = 1, 2, 3 etc

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Q: What is the pattern rule for 9 18 21?
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The factors of 9 are: 1, 3, 9The factors of 18 are: 1, 2, 3, 6, 9, 18The factors of 21 are: 1, 3, 7, 21


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