Enrhifo
\frac{16\left(1-2x^{2}\right)^{2}}{x^{4}}
Ehangu
64-\frac{64}{x^{2}}+\frac{16}{x^{4}}
Graff
Rhannu
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16\left(x^{-2}\right)^{2}-64x^{-2}+64
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(4x^{-2}-8\right)^{2}.
16x^{-4}-64x^{-2}+64
I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch -2 a 2 i gael -4.
16\left(x^{-2}\right)^{2}-64x^{-2}+64
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(4x^{-2}-8\right)^{2}.
16x^{-4}-64x^{-2}+64
I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch -2 a 2 i gael -4.
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