Datrys 2xleft(x^2+1right)^3

$$2x { \left( { x }^{ 2 } +1 \right) }^{ 3 }$$

Ehangu

$$2x^{7}+6x^{5}+6x^{3}+2x$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} i ehangu'r \left(x^{2}+1\right)^{3}.

$$2x\left(\left(x^{2}\right)^{3}+3\left(x^{2}\right)^{2}+3x^{2}+1\right)$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 2 a 3 i gael 6.

$$2x\left(x^{6}+3\left(x^{2}\right)^{2}+3x^{2}+1\right)$$

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

$$2x\left(x^{6}+3x^{4}+3x^{2}+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi 2x â x^{6}+3x^{4}+3x^{2}+1.

$$2x^{7}+6x^{5}+6x^{3}+2x$$

Enrhifo

$$2x\left(x^{2}+1\right)^{3}$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} i ehangu'r \left(x^{2}+1\right)^{3}.

$$2x\left(\left(x^{2}\right)^{3}+3\left(x^{2}\right)^{2}+3x^{2}+1\right)$$

I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch 2 a 3 i gael 6.

$$2x\left(x^{6}+3\left(x^{2}\right)^{2}+3x^{2}+1\right)$$

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

$$2x\left(x^{6}+3x^{4}+3x^{2}+1\right)$$

Defnyddio’r briodwedd ddosbarthu i luosi 2x â x^{6}+3x^{4}+3x^{2}+1.

$$2x^{7}+6x^{5}+6x^{3}+2x$$