Divide: 2x+4x−1÷(x+2)\dfrac{2x+4}{x-1} \div (x+2)x−12x+4÷(x+2).
2x−1\dfrac{2}{x-1}x−12
2(x+2)x−1\dfrac{2(x+2)}{x-1}x−12(x+2)
2(x−1)(x+2)\dfrac{2}{(x-1)(x+2)}(x−1)(x+2)2
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