Enrhifo
\frac{x^{2}-16}{3\left(x+1\right)}
Ehangu
\frac{x^{2}-16}{3\left(x+1\right)}
Graff
Rhannu
Copïo i clipfwrdd
\frac{\left(x-1\right)\left(x+1\right)}{3\left(x+1\right)}-\frac{5\times 3}{3\left(x+1\right)}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin 3 a x+1 yw 3\left(x+1\right). Lluoswch \frac{x-1}{3} â \frac{x+1}{x+1}. Lluoswch \frac{5}{x+1} â \frac{3}{3}.
\frac{\left(x-1\right)\left(x+1\right)-5\times 3}{3\left(x+1\right)}
Gan fod gan \frac{\left(x-1\right)\left(x+1\right)}{3\left(x+1\right)} a \frac{5\times 3}{3\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{x^{2}+x-x-1-15}{3\left(x+1\right)}
Gwnewch y gwaith lluosi yn \left(x-1\right)\left(x+1\right)-5\times 3.
\frac{x^{2}-16}{3\left(x+1\right)}
Cyfuno termau tebyg yn x^{2}+x-x-1-15.
\frac{x^{2}-16}{3x+3}
Ehangu 3\left(x+1\right).
\frac{\left(x-1\right)\left(x+1\right)}{3\left(x+1\right)}-\frac{5\times 3}{3\left(x+1\right)}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin 3 a x+1 yw 3\left(x+1\right). Lluoswch \frac{x-1}{3} â \frac{x+1}{x+1}. Lluoswch \frac{5}{x+1} â \frac{3}{3}.
\frac{\left(x-1\right)\left(x+1\right)-5\times 3}{3\left(x+1\right)}
Gan fod gan \frac{\left(x-1\right)\left(x+1\right)}{3\left(x+1\right)} a \frac{5\times 3}{3\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{x^{2}+x-x-1-15}{3\left(x+1\right)}
Gwnewch y gwaith lluosi yn \left(x-1\right)\left(x+1\right)-5\times 3.
\frac{x^{2}-16}{3\left(x+1\right)}
Cyfuno termau tebyg yn x^{2}+x-x-1-15.
\frac{x^{2}-16}{3x+3}
Ehangu 3\left(x+1\right).
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\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}