Ffactor
\frac{\left(15x-2y\right)\left(15x+2y\right)}{36}
Enrhifo
\frac{25x^{2}}{4}-\frac{y^{2}}{9}
Rhannu
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\frac{225x^{2}-4y^{2}}{36}
Ffactora allan \frac{1}{36}.
\left(15x-2y\right)\left(15x+2y\right)
Ystyriwch 225x^{2}-4y^{2}. Ailysgrifennwch 225x^{2}-4y^{2} fel \left(15x\right)^{2}-\left(2y\right)^{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(15x-2y\right)\left(15x+2y\right)}{36}
Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.
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