Enrhifo
\frac{x-3}{x+3}
Ehangu
\frac{x-3}{x+3}
Graff
Rhannu
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\frac{\left(x^{2}-2x-3\right)\left(x^{2}-10x+21\right)}{\left(x^{2}-9\right)\left(x^{2}-6x-7\right)}
Rhannwch \frac{x^{2}-2x-3}{x^{2}-9} â \frac{x^{2}-6x-7}{x^{2}-10x+21} drwy luosi \frac{x^{2}-2x-3}{x^{2}-9} â chilydd \frac{x^{2}-6x-7}{x^{2}-10x+21}.
\frac{\left(x-7\right)\left(x+1\right)\left(x-3\right)^{2}}{\left(x-7\right)\left(x-3\right)\left(x+1\right)\left(x+3\right)}
Dylech ffactoreiddio'r mynegiadau sydd heb eu ffactoreiddio eto.
\frac{x-3}{x+3}
Canslo \left(x-7\right)\left(x-3\right)\left(x+1\right) yn y rhifiadur a'r enwadur.
\frac{\left(x^{2}-2x-3\right)\left(x^{2}-10x+21\right)}{\left(x^{2}-9\right)\left(x^{2}-6x-7\right)}
Rhannwch \frac{x^{2}-2x-3}{x^{2}-9} â \frac{x^{2}-6x-7}{x^{2}-10x+21} drwy luosi \frac{x^{2}-2x-3}{x^{2}-9} â chilydd \frac{x^{2}-6x-7}{x^{2}-10x+21}.
\frac{\left(x-7\right)\left(x+1\right)\left(x-3\right)^{2}}{\left(x-7\right)\left(x-3\right)\left(x+1\right)\left(x+3\right)}
Dylech ffactoreiddio'r mynegiadau sydd heb eu ffactoreiddio eto.
\frac{x-3}{x+3}
Canslo \left(x-7\right)\left(x-3\right)\left(x+1\right) yn y rhifiadur a'r enwadur.
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