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[1 + i]^40 =
( [1 + i]^2 * [1 + i]^2 )^10 =
( [1 + 2i + i^2] * [1 + 2i + i^2] )^10 =
( [1 + 2i - 1] * [1 + 2i - 1] )^10 =
( [2i] * [2i] )^10 =
[4i^2]^10 =
[4 * (-1)]^10 =
( [- 4]^2 )^5 =
[16]^5 =
1.048.576
( [1 + i]^2 * [1 + i]^2 )^10 =
( [1 + 2i + i^2] * [1 + 2i + i^2] )^10 =
( [1 + 2i - 1] * [1 + 2i - 1] )^10 =
( [2i] * [2i] )^10 =
[4i^2]^10 =
[4 * (-1)]^10 =
( [- 4]^2 )^5 =
[16]^5 =
1.048.576
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