Aromātai
\frac{\left(x-3\right)^{2}}{9}
Tauwehe
\frac{\left(x-3\right)^{2}}{9}
Graph
Tohaina
Kua tāruatia ki te papatopenga
\frac{x^{2}}{9}+\frac{9}{9}-\frac{2x}{3}
Hei tāpiri, hei tango kīanga rānei, me whakaroha ērā kia rite ā rātou tauraro. Whakareatia 1 ki te \frac{9}{9}.
\frac{x^{2}+9}{9}-\frac{2x}{3}
Tā te mea he rite te tauraro o \frac{x^{2}}{9} me \frac{9}{9}, me tāpiri rāua mā te tāpiri i ō raua taurunga.
\frac{x^{2}+9}{9}-\frac{3\times 2x}{9}
Hei tāpiri, hei tango kīanga rānei, me whakaroha ērā kia rite ā rātou tauraro. Ko te taurea pātahi iti rawa o 9 me 3 ko 9. Whakareatia \frac{2x}{3} ki te \frac{3}{3}.
\frac{x^{2}+9-3\times 2x}{9}
Tā te mea he rite te tauraro o \frac{x^{2}+9}{9} me \frac{3\times 2x}{9}, me tango rāua mā te tango i ō raua taurunga.
\frac{x^{2}+9-6x}{9}
Mahia ngā whakarea i roto o x^{2}+9-3\times 2x.
\frac{x^{2}+9-6x}{9}
Tauwehea te \frac{1}{9}.
\left(x-3\right)^{2}
Whakaarohia te x^{2}+9-6x. Whakamahia te tikanga tātai pūrua pā, a^{2}-2ab+b^{2}=\left(a-b\right)^{2}, ina a=x, ina b=3.
\frac{\left(x-3\right)^{2}}{9}
Me tuhi anō te kīanga whakatauwehe katoa.
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}