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(3x²-2x-1)÷(x-1)=(
(3x²-2x-1)÷(x-1)=(
When x ≠ 1
(3x²-2x-1)÷(x-1)
=(3x + 1) (x-1) / (x-1) first step factorization, 3x & # 178; - 2x-1 is decomposed into (3x + 1) (x-1)
=3x+1
When x = 1, the denominator is 0
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