Enrhifo
\frac{xy^{3}}{282475249}
Ehangu
\frac{xy^{3}}{282475249}
Rhannu
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7^{2}\left(x^{-1}\right)^{2}\times \left(49^{-2}xy\right)^{3}
Ehangu \left(7x^{-1}\right)^{2}.
7^{2}x^{-2}\times \left(49^{-2}xy\right)^{3}
I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch -1 a 2 i gael -2.
49x^{-2}\times \left(49^{-2}xy\right)^{3}
Cyfrifo 7 i bŵer 2 a chael 49.
49x^{-2}\times \left(\frac{1}{2401}xy\right)^{3}
Cyfrifo 49 i bŵer -2 a chael \frac{1}{2401}.
49x^{-2}\times \left(\frac{1}{2401}\right)^{3}x^{3}y^{3}
Ehangu \left(\frac{1}{2401}xy\right)^{3}.
49x^{-2}\times \frac{1}{13841287201}x^{3}y^{3}
Cyfrifo \frac{1}{2401} i bŵer 3 a chael \frac{1}{13841287201}.
\frac{1}{282475249}x^{-2}x^{3}y^{3}
Lluosi 49 a \frac{1}{13841287201} i gael \frac{1}{282475249}.
\frac{1}{282475249}x^{1}y^{3}
Er mwyn lluosi pwerau sy’n rhannu’r un sail, adiwch eu esbonyddion. Adiwch -2 a 3 i gael 1.
\frac{1}{282475249}xy^{3}
Cyfrifo x i bŵer 1 a chael x.
7^{2}\left(x^{-1}\right)^{2}\times \left(49^{-2}xy\right)^{3}
Ehangu \left(7x^{-1}\right)^{2}.
7^{2}x^{-2}\times \left(49^{-2}xy\right)^{3}
I godi pŵer rhif i bŵer arall, lluoswch yr esbonyddion. Lluoswch -1 a 2 i gael -2.
49x^{-2}\times \left(49^{-2}xy\right)^{3}
Cyfrifo 7 i bŵer 2 a chael 49.
49x^{-2}\times \left(\frac{1}{2401}xy\right)^{3}
Cyfrifo 49 i bŵer -2 a chael \frac{1}{2401}.
49x^{-2}\times \left(\frac{1}{2401}\right)^{3}x^{3}y^{3}
Ehangu \left(\frac{1}{2401}xy\right)^{3}.
49x^{-2}\times \frac{1}{13841287201}x^{3}y^{3}
Cyfrifo \frac{1}{2401} i bŵer 3 a chael \frac{1}{13841287201}.
\frac{1}{282475249}x^{-2}x^{3}y^{3}
Lluosi 49 a \frac{1}{13841287201} i gael \frac{1}{282475249}.
\frac{1}{282475249}x^{1}y^{3}
Er mwyn lluosi pwerau sy’n rhannu’r un sail, adiwch eu esbonyddion. Adiwch -2 a 3 i gael 1.
\frac{1}{282475249}xy^{3}
Cyfrifo x i bŵer 1 a chael x.
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