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4 votes
Help me with this calculation
(X-1).(1-x)

asked
User Bogdan N
by
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1 Answer

4 votes


(x-1) (1-x)\\\\=(x-1)(-1)(x-1)\\\\=-(x-1)^2\\\\=-(x^2- 2x +1)\\\\=-x^2+2x-1

answered
User Brij
by
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