Datrys left(2pright)^2-left(2p-2qright)^2

$${ \left(2p \right) }^{ 2 } - { \left(2p-2q \right) }^{ 2 }$$

Enrhifo

$$4q\left(2p-q\right)$$

Camau Ateb

Ehangu \left(2p\right)^{2}.

$$2^{2}p^{2}-\left(2p-2q\right)^{2}$$

Cyfrifo 2 i bŵer 2 a chael 4.

$$4p^{2}-\left(2p-2q\right)^{2}$$

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2p-2q\right)^{2}.

$$4p^{2}-\left(4p^{2}-8pq+4q^{2}\right)$$

I ddod o hyd i wrthwyneb 4p^{2}-8pq+4q^{2}, dewch o hyd i wrthwyneb pob term.

$$4p^{2}-4p^{2}+8pq-4q^{2}$$

Cyfuno 4p^{2} a -4p^{2} i gael 0.

$$8pq-4q^{2}$$

Ehangu

$$8pq-4q^{2}$$

Camau Ateb

Ehangu \left(2p\right)^{2}.

$$2^{2}p^{2}-\left(2p-2q\right)^{2}$$

Cyfrifo 2 i bŵer 2 a chael 4.

$$4p^{2}-\left(2p-2q\right)^{2}$$

Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2p-2q\right)^{2}.

$$4p^{2}-\left(4p^{2}-8pq+4q^{2}\right)$$

I ddod o hyd i wrthwyneb 4p^{2}-8pq+4q^{2}, dewch o hyd i wrthwyneb pob term.

$$4p^{2}-4p^{2}+8pq-4q^{2}$$

Cyfuno 4p^{2} a -4p^{2} i gael 0.

$$8pq-4q^{2}$$