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Multiply and simplify x-1/ x^2+2x+1 x x^2-1/ x+1
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Multiply and simplify x-1/ x^2+2x+1 x x^2-1/ x+1

User Doe
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(x-1)/(x^2+2x+1)\cdot(x^2-1)/(x+1)\\\\=((x-1)(x-1)(x+1))/((x+1)^2(x+1))\\\\=(x^2-2x+1)/(x^2+2x+1)
User Hdiz
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