Tauwehe
\left(x-1\right)^{2}\left(x+1\right)^{2}
Aromātai
\left(x^{2}-1\right)^{2}
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{4}-2x^{2}+1=0
Kia tauwehea ai te kīanga, me whakaoti te whārite ina ōrite ki te 0.
±1
Tā te Rational Root Theorem, ko ngā pūtake whakahau katoa o tētahi pūrau kei te āhua o \frac{p}{q}, ina wehea e p te kīanga pūmau 1, ā, ka wehea e q te whakarea arahanga 1. Whakarārangitia ngā kaitono katoa \frac{p}{q}.
x=1
Kimihia tētahi pūtake pērā mā te whakamātau i ngā uara tau tōpū katoa, e tīmata ana i te mea iti rawa mā te uara pū. Mēnā kāore he pūtake tau tōpū e kitea, whakamātauria ngā hautanga.
x^{3}+x^{2}-x-1=0
Mā te whakatakotoranga Tauwehe, he tauwehe te x-k o te pūrau mō ia pūtake k. Whakawehea te x^{4}-2x^{2}+1 ki te x-1, kia riro ko x^{3}+x^{2}-x-1. Kia tauwehea ai te otinga, me whakaoti te whārite ina ōrite ki te 0.
±1
Tā te Rational Root Theorem, ko ngā pūtake whakahau katoa o tētahi pūrau kei te āhua o \frac{p}{q}, ina wehea e p te kīanga pūmau -1, ā, ka wehea e q te whakarea arahanga 1. Whakarārangitia ngā kaitono katoa \frac{p}{q}.
x=1
Kimihia tētahi pūtake pērā mā te whakamātau i ngā uara tau tōpū katoa, e tīmata ana i te mea iti rawa mā te uara pū. Mēnā kāore he pūtake tau tōpū e kitea, whakamātauria ngā hautanga.
x^{2}+2x+1=0
Mā te whakatakotoranga Tauwehe, he tauwehe te x-k o te pūrau mō ia pūtake k. Whakawehea te x^{3}+x^{2}-x-1 ki te x-1, kia riro ko x^{2}+2x+1. Kia tauwehea ai te otinga, me whakaoti te whārite ina ōrite ki te 0.
x=\frac{-2±\sqrt{2^{2}-4\times 1\times 1}}{2}
Ka taea ngā whārite katoa o te momo ax^{2}+bx+c=0 te whakaoti mā te ture pūrua: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. Whakakapia te 1 mō te a, te 2 mō te b, me te 1 mō te c i te ture pūrua.
x=\frac{-2±0}{2}
Mahia ngā tātaitai.
x=-1
He ōrite ngā whakatau.
\left(x-1\right)^{2}\left(x+1\right)^{2}
Me tuhi anō te kīanga whakatauwehe mā ngā pūtake i riro.
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