Datrys x-1/5{{left(frac{x/5right)}^3-1/5}}

$$\frac{ x-1 }{ \frac{ 5 }{ { \left( \frac{ x }{ 5 } \right) }^{ 3 } - \frac{ 1 }{ 5 } } }$$

Enrhifo

$$\frac{\left(x-1\right)\left(x^{3}-25\right)}{625}$$

Camau Ateb

Rhannwch x-1 â \frac{5}{\left(\frac{x}{5}\right)^{3}-\frac{1}{5}} drwy luosi x-1 â chilydd \frac{5}{\left(\frac{x}{5}\right)^{3}-\frac{1}{5}}.

$$\frac{\left(x-1\right)\left(\left(\frac{x}{5}\right)^{3}-\frac{1}{5}\right)}{5}$$

I godi \frac{x}{5} i bŵer, codwch y rhifiadur a'r enwadur i bŵer ac yna rhannwch nhw.

$$\frac{\left(x-1\right)\left(\frac{x^{3}}{5^{3}}-\frac{1}{5}\right)}{5}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin 5^{3} a 5 yw 125. Lluoswch \frac{1}{5} â \frac{25}{25}.

$$\frac{\left(x-1\right)\left(\frac{x^{3}}{125}-\frac{25}{125}\right)}{5}$$

Gan fod gan \frac{x^{3}}{125} a \frac{25}{125} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{\left(x-1\right)\times \frac{x^{3}-25}{125}}{5}$$

Mynegwch \left(x-1\right)\times \frac{x^{3}-25}{125} fel ffracsiwn unigol.

$$\frac{\frac{\left(x-1\right)\left(x^{3}-25\right)}{125}}{5}$$

Mynegwch \frac{\frac{\left(x-1\right)\left(x^{3}-25\right)}{125}}{5} fel ffracsiwn unigol.

$$\frac{\left(x-1\right)\left(x^{3}-25\right)}{125\times 5}$$

Lluosi 125 a 5 i gael 625.

$$\frac{\left(x-1\right)\left(x^{3}-25\right)}{625}$$

Defnyddio’r briodwedd ddosbarthu i luosi x-1 â x^{3}-25.

$$\frac{x^{4}-25x-x^{3}+25}{625}$$

Ehangu

$$\frac{x^{4}}{625}-\frac{x^{3}}{625}-\frac{x}{25}+\frac{1}{25}$$

Camau Ateb

Rhannwch x-1 â \frac{5}{\left(\frac{x}{5}\right)^{3}-\frac{1}{5}} drwy luosi x-1 â chilydd \frac{5}{\left(\frac{x}{5}\right)^{3}-\frac{1}{5}}.

$$\frac{\left(x-1\right)\left(\left(\frac{x}{5}\right)^{3}-\frac{1}{5}\right)}{5}$$

I godi \frac{x}{5} i bŵer, codwch y rhifiadur a'r enwadur i bŵer ac yna rhannwch nhw.

$$\frac{\left(x-1\right)\left(\frac{x^{3}}{5^{3}}-\frac{1}{5}\right)}{5}$$

I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin 5^{3} a 5 yw 125. Lluoswch \frac{1}{5} â \frac{25}{25}.

$$\frac{\left(x-1\right)\left(\frac{x^{3}}{125}-\frac{25}{125}\right)}{5}$$

Gan fod gan \frac{x^{3}}{125} a \frac{25}{125} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.

$$\frac{\left(x-1\right)\times \frac{x^{3}-25}{125}}{5}$$

Mynegwch \left(x-1\right)\times \frac{x^{3}-25}{125} fel ffracsiwn unigol.

$$\frac{\frac{\left(x-1\right)\left(x^{3}-25\right)}{125}}{5}$$

Mynegwch \frac{\frac{\left(x-1\right)\left(x^{3}-25\right)}{125}}{5} fel ffracsiwn unigol.

$$\frac{\left(x-1\right)\left(x^{3}-25\right)}{125\times 5}$$

Lluosi 125 a 5 i gael 625.

$$\frac{\left(x-1\right)\left(x^{3}-25\right)}{625}$$

Defnyddio’r briodwedd ddosbarthu i luosi x-1 â x^{3}-25.

$$\frac{x^{4}-25x-x^{3}+25}{625}$$