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Decomposition factor: m power of a * M-1 power of B-A (integer with M > 1)
M power of a * M-1 power of B-A
=b*a^m-a^(m-1)
=a^(m-1)*(ba-1)
N + 2 power of X - n power of X (n is an integer greater than one)
Original formula = x ^ n * (X & # 178; - 1) = x ^ n * (x + 1) (x-1)
Factorization: 2Y ^ n-y ^ n-2 (n is an integer and greater than 2)
2y^n-y^n-2
=2y^n-y^(n-2)
=2y^(n-2+2)-y^(n-2)
=2y^(n-2)*y^2-y^(n-2)
=y^(n-2)(2y^2-1)
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