Whakaoti mō x
x=\frac{1}{4}=0.25
x=0
Graph
Tohaina
Kua tāruatia ki te papatopenga
5x^{2}+2x-x^{2}=3x
Tangohia te 1x^{2} mai i ngā taha e rua.
4x^{2}+2x=3x
Pahekotia te 5x^{2} me -x^{2}, ka 4x^{2}.
4x^{2}+2x-3x=0
Tangohia te 3x mai i ngā taha e rua.
4x^{2}-x=0
Pahekotia te 2x me -3x, ka -x.
x\left(4x-1\right)=0
Tauwehea te x.
x=0 x=\frac{1}{4}
Hei kimi otinga whārite, me whakaoti te x=0 me te 4x-1=0.
5x^{2}+2x-x^{2}=3x
Tangohia te 1x^{2} mai i ngā taha e rua.
4x^{2}+2x=3x
Pahekotia te 5x^{2} me -x^{2}, ka 4x^{2}.
4x^{2}+2x-3x=0
Tangohia te 3x mai i ngā taha e rua.
4x^{2}-x=0
Pahekotia te 2x me -3x, ka -x.
x=\frac{-\left(-1\right)±\sqrt{1}}{2\times 4}
Kei te āhua arowhānui tēnei whārite: ax^{2}+bx+c=0. Me whakakapi 4 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\times 4}
Tuhia te pūtakerua o te 1.
x=\frac{1±1}{2\times 4}
Ko te tauaro o -1 ko 1.
x=\frac{1±1}{8}
Whakareatia 2 ki te 4.
x=\frac{2}{8}
Nā, me whakaoti te whārite x=\frac{1±1}{8} ina he tāpiri te ±. Tāpiri 1 ki te 1.
x=\frac{1}{4}
Whakahekea te hautanga \frac{2}{8} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.
x=\frac{0}{8}
Nā, me whakaoti te whārite x=\frac{1±1}{8} ina he tango te ±. Tango 1 mai i 1.
x=0
Whakawehe 0 ki te 8.
x=\frac{1}{4} x=0
Kua oti te whārite te whakatau.
5x^{2}+2x-x^{2}=3x
Tangohia te 1x^{2} mai i ngā taha e rua.
4x^{2}+2x=3x
Pahekotia te 5x^{2} me -x^{2}, ka 4x^{2}.
4x^{2}+2x-3x=0
Tangohia te 3x mai i ngā taha e rua.
4x^{2}-x=0
Pahekotia te 2x me -3x, ka -x.
\frac{4x^{2}-x}{4}=\frac{0}{4}
Whakawehea ngā taha e rua ki te 4.
x^{2}-\frac{1}{4}x=\frac{0}{4}
Mā te whakawehe ki te 4 ka wetekia te whakareanga ki te 4.
x^{2}-\frac{1}{4}x=0
Whakawehe 0 ki te 4.
x^{2}-\frac{1}{4}x+\left(-\frac{1}{8}\right)^{2}=\left(-\frac{1}{8}\right)^{2}
Whakawehea te -\frac{1}{4}, te tau whakarea o te kīanga tau x, ki te 2 kia riro ai te -\frac{1}{8}. Nā, tāpiria te pūrua o te -\frac{1}{8} ki ngā taha e rua o te whārite. Mā konei e pūrua tika tonu ai te taha mauī o te whārite.
x^{2}-\frac{1}{4}x+\frac{1}{64}=\frac{1}{64}
Pūruatia -\frac{1}{8} mā te pūrua i te taurunga me te tauraro o te hautanga.
\left(x-\frac{1}{8}\right)^{2}=\frac{1}{64}
Tauwehea x^{2}-\frac{1}{4}x+\frac{1}{64}. Ko te tikanga pūnoa, ina ko x^{2}+bx+c he pūrua tika pūrua tika pū, ka taea taua mea te tauwehea i ngā wā katoa hei \left(x+\frac{b}{2}\right)^{2}.
\sqrt{\left(x-\frac{1}{8}\right)^{2}}=\sqrt{\frac{1}{64}}
Tuhia te pūtakerua o ngā taha e rua o te whārite.
x-\frac{1}{8}=\frac{1}{8} x-\frac{1}{8}=-\frac{1}{8}
Whakarūnātia.
x=\frac{1}{4} x=0
Me tāpiri \frac{1}{8} ki ngā taha e rua o te whārite.
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