Toán Lớp 8: $\frac{x^2+4x+4}{2x+4}$ . $\frac{2x-x^2}{x^2-4}$
b) $\frac{7x+2}{2x-3}$ . $\frac{4x^2-9}{14x+4}$
c) $\frac{9x^2-10}{3x^2-4x}$ . $\frac{8-6x}{(3x+4)^2}$
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Toán Lớp 8: $\frac{x^2+4x+4}{2x+4}$ . $\frac{2x-x^2}{x^2-4}$
b) $\frac{7x+2}{2x-3}$ . $\frac{4x^2-9}{14x+4}$
c) $\frac{9x^2-10}{3x^2-4x}$ . $\frac{8-6x}{(3x+4)^2}$
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