Datrys 1/4(x+1)(x-1)(x-1)(x+1)+x^2=1/4(x^2+1)(x^2+1)

$$\frac{ 1 }{ 4 } (x+1)(x-1)(x-1)(x+1)+ { x }^{ 2 } = \frac{ 1 }{ 4 } ( { x }^{ 2 } +1)( { x }^{ 2 } +1)$$

Datrys ar gyfer x (complex solution)

$$x\in \mathrm{C}$$

Camau Ateb

Lluosi x+1 a x+1 i gael \left(x+1\right)^{2}.

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

Lluosi x-1 a x-1 i gael \left(x-1\right)^{2}.

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

Lluosi x^{2}+1 a x^{2}+1 i gael \left(x^{2}+1\right)^{2}.

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

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+1\right)^{2}.

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

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(x-1\right)^{2}.

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

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4} â x^{2}+2x+1.

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

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4}x^{2}+\frac{1}{2}x+\frac{1}{4} â x^{2}-2x+1 a chyfuno termau tebyg.

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

Cyfuno -\frac{1}{2}x^{2} a x^{2} i gael \frac{1}{2}x^{2}.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(x^{2}+1\right)^{2}$$

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x^{2}+1\right)^{2}.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(\left(x^{2}\right)^{2}+2x^{2}+1\right)$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 2 a 2 i gael 4.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(x^{4}+2x^{2}+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4} â x^{4}+2x^{2}+1.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}$$

Tynnu \frac{1}{4}x^{4} o'r ddwy ochr.

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

Cyfuno \frac{1}{4}x^{4} a -\frac{1}{4}x^{4} i gael 0.

$$\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{2}x^{2}+\frac{1}{4}$$

Tynnu \frac{1}{2}x^{2} o'r ddwy ochr.

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

Cyfuno \frac{1}{2}x^{2} a -\frac{1}{2}x^{2} i gael 0.

$$\frac{1}{4}=\frac{1}{4}$$

Cymharu \frac{1}{4} gyda \frac{1}{4}.

$$\text{true}$$

Mae hyn yn wir ar gyfer unrhyw x.

$$x\in \mathrm{C}$$

Datrys ar gyfer x

$$x\in \mathrm{R}$$

Camau Ateb

Lluosi x+1 a x+1 i gael \left(x+1\right)^{2}.

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

Lluosi x-1 a x-1 i gael \left(x-1\right)^{2}.

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

Lluosi x^{2}+1 a x^{2}+1 i gael \left(x^{2}+1\right)^{2}.

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

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x+1\right)^{2}.

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

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(x-1\right)^{2}.

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

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4} â x^{2}+2x+1.

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

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4}x^{2}+\frac{1}{2}x+\frac{1}{4} â x^{2}-2x+1 a chyfuno termau tebyg.

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

Cyfuno -\frac{1}{2}x^{2} a x^{2} i gael \frac{1}{2}x^{2}.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(x^{2}+1\right)^{2}$$

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x^{2}+1\right)^{2}.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(\left(x^{2}\right)^{2}+2x^{2}+1\right)$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 2 a 2 i gael 4.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}\left(x^{4}+2x^{2}+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi \frac{1}{4} â x^{4}+2x^{2}+1.

$$\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{4}x^{4}+\frac{1}{2}x^{2}+\frac{1}{4}$$

Tynnu \frac{1}{4}x^{4} o'r ddwy ochr.

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

Cyfuno \frac{1}{4}x^{4} a -\frac{1}{4}x^{4} i gael 0.

$$\frac{1}{2}x^{2}+\frac{1}{4}=\frac{1}{2}x^{2}+\frac{1}{4}$$

Tynnu \frac{1}{2}x^{2} o'r ddwy ochr.

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

Cyfuno \frac{1}{2}x^{2} a -\frac{1}{2}x^{2} i gael 0.

$$\frac{1}{4}=\frac{1}{4}$$

Cymharu \frac{1}{4} gyda \frac{1}{4}.

$$\text{true}$$

Mae hyn yn wir ar gyfer unrhyw x.

$$x\in \mathrm{R}$$