Datrys (-5+b^3)^2

$$( - 5 + b ^ { 3 } ) ^ { 2 }$$

Enrhifo

$$\left(b^{3}-5\right)^{2}$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(-5+b^{3}\right)^{2}.

$$25-10b^{3}+\left(b^{3}\right)^{2}$$

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

$$25-10b^{3}+b^{6}$$

Ehangu

$$b^{6}-10b^{3}+25$$

Camau Ateb

Defnyddio'r theorem binomaidd \left(p+q\right)^{2}=p^{2}+2pq+q^{2} i ehangu'r \left(-5+b^{3}\right)^{2}.

$$25-10b^{3}+\left(b^{3}\right)^{2}$$

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

$$25-10b^{3}+b^{6}$$