Answer :

mhanifa

Answer:

  • n^2 + 2n - 1

Step-by-step explanation:

Figure 1

  • 2*2 - 2

Figure 2

  • 3*3 - 2

Figure 3

  • 4*4 - 2

Equation for nth term

  • (n + 1)^2 - 2 =
  • n^2 + 2n + 1 - 2 =
  • n^2 + 2n - 1

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