Datrys 4u^4-64u^2

$$4 u ^ { 4 } - 64 u ^ { 2 }$$

Ffactor

$$4\left(u-4\right)\left(u+4\right)u^{2}$$

Camau Ateb

Ffactora allan 4.

$$4\left(u^{4}-16u^{2}\right)$$

Ystyriwch u^{4}-16u^{2}. Ffactora allan u^{2}.

$$u^{2}\left(u^{2}-16\right)$$

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

$$\left(u-4\right)\left(u+4\right)$$

Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.

$$4u^{2}\left(u-4\right)\left(u+4\right)$$

Enrhifo

$$4u^{2}\left(u^{2}-16\right)$$