Aromātai
14x^{2}+29x-25
Whakaroha
14x^{2}+29x-25
Graph
Tohaina
Kua tāruatia ki te papatopenga
18x^{2}+9x-\left(2x-5\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 9x ki te 2x+1.
18x^{2}+9x-\left(4x^{2}-20x+25\right)
Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(2x-5\right)^{2}.
18x^{2}+9x-4x^{2}+20x-25
Hei kimi i te tauaro o 4x^{2}-20x+25, kimihia te tauaro o ia taurangi.
14x^{2}+9x+20x-25
Pahekotia te 18x^{2} me -4x^{2}, ka 14x^{2}.
14x^{2}+29x-25
Pahekotia te 9x me 20x, ka 29x.
18x^{2}+9x-\left(2x-5\right)^{2}
Whakamahia te āhuatanga tohatoha hei whakarea te 9x ki te 2x+1.
18x^{2}+9x-\left(4x^{2}-20x+25\right)
Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(2x-5\right)^{2}.
18x^{2}+9x-4x^{2}+20x-25
Hei kimi i te tauaro o 4x^{2}-20x+25, kimihia te tauaro o ia taurangi.
14x^{2}+9x+20x-25
Pahekotia te 18x^{2} me -4x^{2}, ka 14x^{2}.
14x^{2}+29x-25
Pahekotia te 9x me 20x, ka 29x.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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whārite Simultaneous
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Whakarerekētanga
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Whakaurunga
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Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}