Whakaoti mō x
x=1
x=0
Graph
Pātaitai
Polynomial
{ x }^{ 2 } -x = 0
Tohaina
Kua tāruatia ki te papatopenga
x\left(x-1\right)=0
Tauwehea te x.
x=0 x=1
Hei kimi otinga whārite, me whakaoti te x=0 me te x-1=0.
x^{2}-x=0
Ko ngā whārite katoa o te āhua ax^{2}+bx+c=0 ka taea te whakaoti mā te whakamahi i te tikanga tātai pūrua: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. E rua ngā otinga ka puta i te tikanga tātai pūrua, ko tētahi ina he tāpiri a ±, ā, ko tētahi ina he tango.
x=\frac{-\left(-1\right)±\sqrt{1}}{2}
Kei te āhua arowhānui tēnei whārite: ax^{2}+bx+c=0. Me whakakapi 1 mō a, -1 mō b, me 0 mō c i te tikanga tātai pūrua, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{-\left(-1\right)±1}{2}
Tuhia te pūtakerua o te 1.
x=\frac{1±1}{2}
Ko te tauaro o -1 ko 1.
x=\frac{2}{2}
Nā, me whakaoti te whārite x=\frac{1±1}{2} ina he tāpiri te ±. Tāpiri 1 ki te 1.
x=1
Whakawehe 2 ki te 2.
x=\frac{0}{2}
Nā, me whakaoti te whārite x=\frac{1±1}{2} ina he tango te ±. Tango 1 mai i 1.
x=0
Whakawehe 0 ki te 2.
x=1 x=0
Kua oti te whārite te whakatau.
x^{2}-x=0
Ko ngā whārite pūrua pēnei i tēnei nā ka taea te whakaoti mā te whakaoti i te pūrua. Hei whakaoti i te pūrua, ko te whārite me mātua tuhi ki te āhua x^{2}+bx=c.
x^{2}-x+\left(-\frac{1}{2}\right)^{2}=\left(-\frac{1}{2}\right)^{2}
Whakawehea te -1, te tau whakarea o te kīanga tau x, ki te 2 kia riro ai te -\frac{1}{2}. Nā, tāpiria te pūrua o te -\frac{1}{2} ki ngā taha e rua o te whārite. Mā konei e pūrua tika tonu ai te taha mauī o te whārite.
x^{2}-x+\frac{1}{4}=\frac{1}{4}
Pūruatia -\frac{1}{2} mā te pūrua i te taurunga me te tauraro o te hautanga.
\left(x-\frac{1}{2}\right)^{2}=\frac{1}{4}
Tauwehea te x^{2}-x+\frac{1}{4}. Ko te tikanga, ina ko x^{2}+bx+c he pūrua tika, ka taea te tauwehe i ngā wā katoa hei \left(x+\frac{b}{2}\right)^{2}.
\sqrt{\left(x-\frac{1}{2}\right)^{2}}=\sqrt{\frac{1}{4}}
Tuhia te pūtakerua o ngā taha e rua o te whārite.
x-\frac{1}{2}=\frac{1}{2} x-\frac{1}{2}=-\frac{1}{2}
Whakarūnātia.
x=1 x=0
Me tāpiri \frac{1}{2} ki ngā taha e rua o te whārite.
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