01-01-2018
Mathematics

contestada

I do not understand how one got 7, 20, 39, 64, 95. Please explain.

I do not understand how one got 7 20 39 64 95 Please explain class=

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rekajenis17p296xr rekajenis17p296xr

08-01-2018

n is 1,2,3,4,5
3n^2+4n we replace n with 1 and 3×1^2+4×1=7
we replace n now with 2 and 3×2^2+4×2=20 and so on

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