Enrhifo
\left(g+h\right)\left(g+12h\right)
Ehangu
g^{2}+13gh+12h^{2}
Rhannu
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\frac{1}{2}g\times 2g+\frac{1}{2}g\times 2h+12hg+12h^{2}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob \frac{1}{2}g+6h gan bob 2g+2h.
\frac{1}{2}g^{2}\times 2+\frac{1}{2}g\times 2h+12hg+12h^{2}
Lluosi g a g i gael g^{2}.
g^{2}+\frac{1}{2}g\times 2h+12hg+12h^{2}
Canslo 2 a 2.
g^{2}+gh+12hg+12h^{2}
Canslo 2 a 2.
g^{2}+13gh+12h^{2}
Cyfuno gh a 12hg i gael 13gh.
\frac{1}{2}g\times 2g+\frac{1}{2}g\times 2h+12hg+12h^{2}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob \frac{1}{2}g+6h gan bob 2g+2h.
\frac{1}{2}g^{2}\times 2+\frac{1}{2}g\times 2h+12hg+12h^{2}
Lluosi g a g i gael g^{2}.
g^{2}+\frac{1}{2}g\times 2h+12hg+12h^{2}
Canslo 2 a 2.
g^{2}+gh+12hg+12h^{2}
Canslo 2 a 2.
g^{2}+13gh+12h^{2}
Cyfuno gh a 12hg i gael 13gh.
Enghreifftiau
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