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>> No.14815156 [View]
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14815156

>>14815147
these are from two problems on the same sheet about arithmetic sequences
in the bottom one they give the explanation as
3+6 = 9, 9+18=27, 27+54=81
when it could just as well be
3*3 = 9, 9*3=27, 27*3=81
making *3 constant, no?

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