Enrhifo
5\left(m-3n\right)\left(3m-9n-1\right)
Ehangu
15m^{2}-90mn-5m+135n^{2}+15n
Rhannu
Copïo i clipfwrdd
-5m+15n+15\left(m-3n\right)^{2}
Defnyddio’r briodwedd ddosbarthu i luosi -5 â m-3n.
-5m+15n+15\left(m^{2}-6mn+9n^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(m-3n\right)^{2}.
-5m+15n+15m^{2}-90mn+135n^{2}
Defnyddio’r briodwedd ddosbarthu i luosi 15 â m^{2}-6mn+9n^{2}.
-5m+15n+15\left(m-3n\right)^{2}
Defnyddio’r briodwedd ddosbarthu i luosi -5 â m-3n.
-5m+15n+15\left(m^{2}-6mn+9n^{2}\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(m-3n\right)^{2}.
-5m+15n+15m^{2}-90mn+135n^{2}
Defnyddio’r briodwedd ddosbarthu i luosi 15 â m^{2}-6mn+9n^{2}.
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