Enrhifo
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Ehangu
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Rhannu
Copïo i clipfwrdd
4a^{2}-16ab+16b^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(2a-4b\right)^{2}.
4a^{2}-16ab+16b^{2}
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(2a-4b\right)^{2}.
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