Simplify 1-x-x2-x3-1-x2

(1 x x^2+x^3)=[1 x+( x^2(1 x))] = (1 x)(1 x^2) = (1 x)^2(1+x) ⇒(1 x x^2+x^3)/(1 x)^2=(1 x)^2(1+x)/(1 x)^2 = (1+x) ...

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Proof by mathematical induction

Simplify 1-x-...

Question

Simplify $\frac{(1 - x - X^{2} + x^{3})}{(1 - x)^{2}}$

Can't simplify because there is no common factor

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(1+x)

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(1-x)

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x-1

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Solution

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=

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X

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