Toán 8 (1) A = \(\frac{x^2 + x}{x^2 + 2x + 1} \cdot \left( \frac{x + 1}{x} + \frac{1}{x - 1} - \frac{2 - x^2}{x - x^2} \right)\) b) \(x =?\) \(A = -\frac{1}{2}\) c) Tìm \(x \in \mathbb{Z}, A \in \mathbb{E}\) d) Tính min \(A\) khi \(x = 1\)

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Toán 8
(1) A = \(\frac{x^2 + x}{x^2 + 2x + 1} \cdot \left( \frac{x + 1}{x} + \frac{1}{x - 1} - \frac{2 - x^2}{x - x^2} \right)\)
b) \(x = ?\) \(A = -\frac{1}{2}\)
c) Tìm \(x \in \mathbb{Z}, A \in \mathbb{E}\)
d) Tính min \(A\) khi \(x = 1\)