Datrys (x^2+25)^2-100x^2

$$( x ^ { 2 } + 25 ) ^ { 2 } - 100 x ^ { 2 }$$

Enrhifo

$$\left(x^{2}-25\right)^{2}$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x^{2}+25\right)^{2}.

$$\left(x^{2}\right)^{2}+50x^{2}+625-100x^{2}$$

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

$$x^{4}+50x^{2}+625-100x^{2}$$

Cyfuno 50x^{2} a -100x^{2} i gael -50x^{2}.

$$x^{4}-50x^{2}+625$$

Ehangu

$$x^{4}-50x^{2}+625$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a+b\right)^{2}=a^{2}+2ab+b^{2} i ehangu'r \left(x^{2}+25\right)^{2}.

$$\left(x^{2}\right)^{2}+50x^{2}+625-100x^{2}$$

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

$$x^{4}+50x^{2}+625-100x^{2}$$

Cyfuno 50x^{2} a -100x^{2} i gael -50x^{2}.

$$x^{4}-50x^{2}+625$$