Aromātai
9x^{2}-49
Whakaroha
9x^{2}-49
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(3x\right)^{2}-7^{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}.
3^{2}x^{2}-7^{2}
Whakarohaina te \left(3x\right)^{2}.
9x^{2}-7^{2}
Tātaihia te 3 mā te pū o 2, kia riro ko 9.
9x^{2}-49
Tātaihia te 7 mā te pū o 2, kia riro ko 49.
\left(3x\right)^{2}-7^{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}.
3^{2}x^{2}-7^{2}
Whakarohaina te \left(3x\right)^{2}.
9x^{2}-7^{2}
Tātaihia te 3 mā te pū o 2, kia riro ko 9.
9x^{2}-49
Tātaihia te 7 mā te pū o 2, kia riro ko 49.
Ngā Tauira
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Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}