Datrys 1/x-y+2x-y/x^2-y^2

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

Enrhifo

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

Camau Ateb Byr

Ffactora x^{2}-y^{2}.

$$\frac{1}{x-y}+\frac{2x-y}{\left(x+y\right)\left(x-y\right)}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x-y a \left(x+y\right)\left(x-y\right) yw \left(x+y\right)\left(x-y\right). Lluoswch \frac{1}{x-y} â \frac{x+y}{x+y}.

$$\frac{x+y}{\left(x+y\right)\left(x-y\right)}+\frac{2x-y}{\left(x+y\right)\left(x-y\right)}$$

Gan fod gan \frac{x+y}{\left(x+y\right)\left(x-y\right)} a \frac{2x-y}{\left(x+y\right)\left(x-y\right)} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{x+y+2x-y}{\left(x+y\right)\left(x-y\right)}$$

Cyfuno termau tebyg yn x+y+2x-y.

$$\frac{3x}{\left(x+y\right)\left(x-y\right)}$$

Ehangu \left(x+y\right)\left(x-y\right).

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

Ehangu

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

Camau Ateb Byr

Ffactora x^{2}-y^{2}.

$$\frac{1}{x-y}+\frac{2x-y}{\left(x+y\right)\left(x-y\right)}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x-y a \left(x+y\right)\left(x-y\right) yw \left(x+y\right)\left(x-y\right). Lluoswch \frac{1}{x-y} â \frac{x+y}{x+y}.

$$\frac{x+y}{\left(x+y\right)\left(x-y\right)}+\frac{2x-y}{\left(x+y\right)\left(x-y\right)}$$

Gan fod gan \frac{x+y}{\left(x+y\right)\left(x-y\right)} a \frac{2x-y}{\left(x+y\right)\left(x-y\right)} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{x+y+2x-y}{\left(x+y\right)\left(x-y\right)}$$

Cyfuno termau tebyg yn x+y+2x-y.

$$\frac{3x}{\left(x+y\right)\left(x-y\right)}$$

Ehangu \left(x+y\right)\left(x-y\right).

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