(x - 1)(x - 1)(x - 1)=(x2 - 2x + 1)(x - 1)
=(x2 - 2x + 1)x - (x2 - 2x + 1)1
=(x3 - 2x2 + x) - (x2 - 2x +1)
= x3 - 3x2 + 3x - 1

Enter this as x^3 - 3*x^2 + 3*x - 1


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