Tauwehe
\left(x+9\right)\left(x^{2}-9x+81\right)
Aromātai
x^{3}+729
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{3}+729
Whakarea ka paheko i ngā kīanga tau ōrite.
\left(x+9\right)\left(x^{2}-9x+81\right)
Tuhia anō te x^{3}+729 hei x^{3}+9^{3}. Ka taea te tapeke pūtoru te whakatauwehe mā te whakamahi i te ture: a^{3}+b^{3}=\left(a+b\right)\left(a^{2}-ab+b^{2}\right). Kāore te pūrau x^{2}-9x+81 i whakatauwehea i te mea kāhore ōna pūtake whakahau.
x^{3}+729
Tātaihia te 9 mā te pū o 3, kia riro ko 729.
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}