Ffactor
\frac{\left(21x-50\right)\left(21x+50\right)}{225}
Enrhifo
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Graff
Rhannu
Copïo i clipfwrdd
\frac{441x^{2}-2500}{225}
Ffactora allan \frac{1}{225}.
\left(21x-50\right)\left(21x+50\right)
Ystyriwch 441x^{2}-2500. Ailysgrifennwch 441x^{2}-2500 fel \left(21x\right)^{2}-50^{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(21x-50\right)\left(21x+50\right)}{225}
Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.
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