Ebaluatu
\frac{2r+7}{r\left(r+2\right)\left(r+3\right)}
Zabaldu
\frac{2r+7}{r\left(r+2\right)\left(r+3\right)}
Partekatu
Kopiatu portapapeletan
\frac{\left(r+2\right)\left(r+2\right)}{r\left(r+2\right)\left(r+3\right)}-\frac{\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)}
Adierazpenak gehitzeko edo kentzeko, zabal itzazu izendatzaileak berdintzeko. r\left(r+3\right) eta r\left(r+2\right) ekuazioen multiplo komun txikiena r\left(r+2\right)\left(r+3\right) da. Egin \frac{r+2}{r\left(r+3\right)} bider \frac{r+2}{r+2}. Egin \frac{r-1}{r\left(r+2\right)} bider \frac{r+3}{r+3}.
\frac{\left(r+2\right)\left(r+2\right)-\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)}
\frac{\left(r+2\right)\left(r+2\right)}{r\left(r+2\right)\left(r+3\right)} eta \frac{\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)} balioek izendatzaile bera dutenez, zenbakitzaileak kendu behar dituzu zatikien kendura kalkulatzeko.
\frac{r^{2}+2r+2r+4-r^{2}-3r+r+3}{r\left(r+2\right)\left(r+3\right)}
Egin biderketak \left(r+2\right)\left(r+2\right)-\left(r-1\right)\left(r+3\right) zatikian.
\frac{2r+7}{r\left(r+2\right)\left(r+3\right)}
Konbinatu hemengo antzeko gaiak: r^{2}+2r+2r+4-r^{2}-3r+r+3.
\frac{2r+7}{r^{3}+5r^{2}+6r}
Garatu r\left(r+2\right)\left(r+3\right).
\frac{\left(r+2\right)\left(r+2\right)}{r\left(r+2\right)\left(r+3\right)}-\frac{\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)}
Adierazpenak gehitzeko edo kentzeko, zabal itzazu izendatzaileak berdintzeko. r\left(r+3\right) eta r\left(r+2\right) ekuazioen multiplo komun txikiena r\left(r+2\right)\left(r+3\right) da. Egin \frac{r+2}{r\left(r+3\right)} bider \frac{r+2}{r+2}. Egin \frac{r-1}{r\left(r+2\right)} bider \frac{r+3}{r+3}.
\frac{\left(r+2\right)\left(r+2\right)-\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)}
\frac{\left(r+2\right)\left(r+2\right)}{r\left(r+2\right)\left(r+3\right)} eta \frac{\left(r-1\right)\left(r+3\right)}{r\left(r+2\right)\left(r+3\right)} balioek izendatzaile bera dutenez, zenbakitzaileak kendu behar dituzu zatikien kendura kalkulatzeko.
\frac{r^{2}+2r+2r+4-r^{2}-3r+r+3}{r\left(r+2\right)\left(r+3\right)}
Egin biderketak \left(r+2\right)\left(r+2\right)-\left(r-1\right)\left(r+3\right) zatikian.
\frac{2r+7}{r\left(r+2\right)\left(r+3\right)}
Konbinatu hemengo antzeko gaiak: r^{2}+2r+2r+4-r^{2}-3r+r+3.
\frac{2r+7}{r^{3}+5r^{2}+6r}
Garatu r\left(r+2\right)\left(r+3\right).
Adibideak
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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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Mugak
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}