TOÁN 8-ÔN TẬP GIỮA HKII

$$\frac{x^2+y}{x^3+xy}$$

$$\frac{2x+\frac{x}{y}}{x^3-1}$$

$$\frac{x+8}{\frac{2x-y}{xy}}$$

$$\frac{4x+2}{\frac{y}{x^2}+xy}$$

$$\frac{x^2+y^2}{\sqrt[]{xy}}$$

$$\frac{x+\frac{1}{x}}{x}$$

$$\frac{x+\sqrt[]{x}}{5}$$

$$\frac{x+y}{x-y}$$

$$\frac{x+y}{x^3-xy}$$

$$\frac{2x+y}{8x^3-1}$$

$$\frac{x+8}{2:x}$$

$$\frac{3x+1}{x^2+2xy}$$

$$\frac{2\sqrt[]{x}+4}{x+1}$$

$$\frac{x+1}{x+2}$$

$$\frac{x^2+2y}{x\ -\ y}$$

$$\frac{x^2-y^2}{x+y}$$

x $$\ne$$ 5

x = 5

x $$\ne$$ 0

x = 0

x $$\ne$$ 9

x = 9

x $$\ne$$ 1

x = 1

$$\frac{1}{2}$$

$$\frac{1}{3}$$

$$\frac{2}{3}$$

$$\frac{-2}{3}$$

$$\frac{1}{9}$$

$$\frac{-1}{9}$$

9

-9

x + 3

x - 3

$$\frac{1}{x+3}$$

$$\frac{1}{x-3}$$

x + 2

x - 2

3x + 2

3x - 2