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freeCodeCamp/guide/chinese/mathematics/factoring-quadratics/index.md

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Factoring Quadratics 保理二次方

保理二次方

对于函数：f（x）= x ^ 2 + 2x + 1，因式形式为f（x）=（x + 1）（x + 1）或f（x）=（x + 1）^ 2

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