Enrhifo
\left(y+2\right)\left(y^{2}+13y+15\right)
Ehangu
y^{3}+15y^{2}+41y+30
Graff
Rhannu
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y^{3}+2y^{2}+13y\left(y+2\right)+15\left(y+2\right)
Defnyddio’r briodwedd ddosbarthu i luosi y^{2} â y+2.
y^{3}+2y^{2}+13y^{2}+26y+15\left(y+2\right)
Defnyddio’r briodwedd ddosbarthu i luosi 13y â y+2.
y^{3}+15y^{2}+26y+15\left(y+2\right)
Cyfuno 2y^{2} a 13y^{2} i gael 15y^{2}.
y^{3}+15y^{2}+26y+15y+30
Defnyddio’r briodwedd ddosbarthu i luosi 15 â y+2.
y^{3}+15y^{2}+41y+30
Cyfuno 26y a 15y i gael 41y.
y^{3}+2y^{2}+13y\left(y+2\right)+15\left(y+2\right)
Defnyddio’r briodwedd ddosbarthu i luosi y^{2} â y+2.
y^{3}+2y^{2}+13y^{2}+26y+15\left(y+2\right)
Defnyddio’r briodwedd ddosbarthu i luosi 13y â y+2.
y^{3}+15y^{2}+26y+15\left(y+2\right)
Cyfuno 2y^{2} a 13y^{2} i gael 15y^{2}.
y^{3}+15y^{2}+26y+15y+30
Defnyddio’r briodwedd ddosbarthu i luosi 15 â y+2.
y^{3}+15y^{2}+41y+30
Cyfuno 26y a 15y i gael 41y.
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