Aromātai
81x^{2}-4
Whakaroha
81x^{2}-4
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(9x\right)^{2}-2^{2}
Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
9^{2}x^{2}-2^{2}
Whakarohaina te \left(9x\right)^{2}.
81x^{2}-2^{2}
Tātaihia te 9 mā te pū o 2, kia riro ko 81.
81x^{2}-4
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
\left(9x\right)^{2}-2^{2}
Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
9^{2}x^{2}-2^{2}
Whakarohaina te \left(9x\right)^{2}.
81x^{2}-2^{2}
Tātaihia te 9 mā te pū o 2, kia riro ko 81.
81x^{2}-4
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
Ngā Tauira
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Whakarerekētanga
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Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}