Question

$1 \times 1 = 2 \\ 2 \times 2 = 6 \\ 3 \times 3 = 12 \\ 5 \times 5 =$
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Answer 1

Answer:

1×1+1=2

2×2+2=6

3×3+3=12

4×4+4=20

5×5+5=30