Enrhifo
-\left(b-c\right)^{2}+1
Ehangu
1-c^{2}+2bc-b^{2}
Rhannu
Copïo i clipfwrdd
1-\left(b^{2}-2bc+c^{2}\right)
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(b-c\right)^{2}.
1-b^{2}+2bc-c^{2}
I ddod o hyd i wrthwyneb b^{2}-2bc+c^{2}, dewch o hyd i wrthwyneb pob term.
1-\left(b^{2}-2bc+c^{2}\right)
Defnyddio'r theorem binomaidd \left(p-q\right)^{2}=p^{2}-2pq+q^{2} i ehangu'r \left(b-c\right)^{2}.
1-b^{2}+2bc-c^{2}
I ddod o hyd i wrthwyneb b^{2}-2bc+c^{2}, dewch o hyd i wrthwyneb pob term.
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