Ffactor
\frac{\left(5p-1\right)\left(5p+1\right)}{25}
Enrhifo
p^{2}-\frac{1}{25}
Rhannu
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\frac{25p^{2}-1}{25}
Ffactora allan \frac{1}{25}.
\left(5p-1\right)\left(5p+1\right)
Ystyriwch 25p^{2}-1. Ailysgrifennwch 25p^{2}-1 fel \left(5p\right)^{2}-1^{2}. Gellir ffactorio’r gwahaniaeth rhwng sgwariau gan ddefnyddio’r rheol: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
\frac{\left(5p-1\right)\left(5p+1\right)}{25}
Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.
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