Enrhifo
\left(1-3y\right)^{3}
Ehangu
1-9y+27y^{2}-27y^{3}
Graff
Rhannu
Copïo i clipfwrdd
1-9y+27y^{2}-27y^{3}
Defnyddio'r theorem binomaidd \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} i ehangu'r \left(1-3y\right)^{3}.
1-9y+27y^{2}-27y^{3}
Defnyddio'r theorem binomaidd \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} i ehangu'r \left(1-3y\right)^{3}.
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