Datrys 1+kx-k-2x/(1-x)^2

$$1 + \frac { k x - k - 2 x } { ( 1 - x ) ^ { 2 } }$$

Enrhifo

$$\frac{x^{2}+kx-4x-k+1}{\left(1-x\right)^{2}}$$

Camau Ateb Byr

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluoswch 1 â \frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}}.

$$\frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}}+\frac{kx-k-2x}{\left(1-x\right)^{2}}$$

Gan fod gan \frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}} a \frac{kx-k-2x}{\left(1-x\right)^{2}} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{\left(1-x\right)^{2}+kx-k-2x}{\left(1-x\right)^{2}}$$

Gwnewch y gwaith lluosi yn \left(1-x\right)^{2}+kx-k-2x.

$$\frac{1-2x+x^{2}+kx-k-2x}{\left(1-x\right)^{2}}$$

Cyfuno termau tebyg yn 1-2x+x^{2}+kx-k-2x.

$$\frac{1-4x+kx+x^{2}-k}{\left(1-x\right)^{2}}$$

Ehangu \left(1-x\right)^{2}.

$$\frac{1-4x+kx+x^{2}-k}{x^{2}-2x+1}$$

Ehangu

$$\frac{x^{2}+kx-4x-k+1}{\left(1-x\right)^{2}}$$

Camau Ateb Byr

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluoswch 1 â \frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}}.

$$\frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}}+\frac{kx-k-2x}{\left(1-x\right)^{2}}$$

Gan fod gan \frac{\left(1-x\right)^{2}}{\left(1-x\right)^{2}} a \frac{kx-k-2x}{\left(1-x\right)^{2}} yr un dynodydd, adiwch nhw drwy adio eu rhifiaduron.

$$\frac{\left(1-x\right)^{2}+kx-k-2x}{\left(1-x\right)^{2}}$$

Gwnewch y gwaith lluosi yn \left(1-x\right)^{2}+kx-k-2x.

$$\frac{1-2x+x^{2}+kx-k-2x}{\left(1-x\right)^{2}}$$

Cyfuno termau tebyg yn 1-2x+x^{2}+kx-k-2x.

$$\frac{1-4x+kx+x^{2}-k}{\left(1-x\right)^{2}}$$

Ehangu \left(1-x\right)^{2}.

$$\frac{1-4x+kx+x^{2}-k}{x^{2}-2x+1}$$