Datrys (9-2x^5)^2

$$( 9 - 2 x ^ { 5 } ) ^ { 2 }$$

Ehangu

$$4x^{10}-36x^{5}+81$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(9-2x^{5}\right)^{2}.

$$81-36x^{5}+4\left(x^{5}\right)^{2}$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 5 a 2 i gael 10.

$$81-36x^{5}+4x^{10}$$

Enrhifo

$$\left(9-2x^{5}\right)^{2}$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(9-2x^{5}\right)^{2}.

$$81-36x^{5}+4\left(x^{5}\right)^{2}$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 5 a 2 i gael 10.

$$81-36x^{5}+4x^{10}$$