Datrys 1/4a^2-4s^2

$$\frac { 1 } { 4 } a ^ { 2 } - 4 s ^ { 2 }$$

Ffactor

$$\frac{\left(a-4s\right)\left(4s+a\right)}{4}$$

Camau Ateb

Ffactora allan \frac{1}{4}.

$$\frac{a^{2}-16s^{2}}{4}$$

Ystyriwch a^{2}-16s^{2}. Ailysgrifennwch a^{2}-16s^{2} fel a^{2}-\left(4s\right)^{2}. Gellir ffactorio’r gwahaniaeth rhwng sgwariau gan ddefnyddio’r rheol: p^{2}-q^{2}=\left(p-q\right)\left(p+q\right).

$$\left(a-4s\right)\left(a+4s\right)$$

Aildrefnu'r termau.

$$\left(-4s+a\right)\left(4s+a\right)$$

Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.

$$\frac{\left(-4s+a\right)\left(4s+a\right)}{4}$$

Enrhifo

$$\frac{a^{2}}{4}-4s^{2}$$