ashleycastrocx
ashleycastrocx ashleycastrocx
  • 29-04-2017
  • Mathematics
contestada

Can anyone please help with this question?

Can anyone please help with this question class=

Respuesta :

irspow
irspow irspow
  • 29-04-2017
The middle section is n(n+1)

The top row is n+2

The bottom row is 2n+1

So the rule for the total number of tiles will be the sum of the above rules...

s(n)=n(n+1)+n+2+2n+1

s(n)=n^2+n+n+2+2n+1

s(n)=n^2+4n+3
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