Whakaoti mō x (complex solution)
x=-7i
x=7i
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{2}=-49
Tangohia te 49 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=7i x=-7i
Kua oti te whārite te whakatau.
x^{2}+49=0
Ko ngā tikanga tātai pūrua pēnei i tēnei nā, me te kīanga tau x^{2} engari kāore he kīanga tau x, ka taea tonu te whakaoti mā te whakamahi i te tikanga tātai pūrua, \frac{-b±\sqrt{b^{2}-4ac}}{2a}, ina tuhia ki te tānga ngahuru: ax^{2}+bx+c=0.
x=\frac{0±\sqrt{0^{2}-4\times 49}}{2}
Kei te āhua arowhānui tēnei whārite: ax^{2}+bx+c=0. Me whakakapi 1 mō a, 0 mō b, me 49 mō c i te tikanga tātai pūrua, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.
x=\frac{0±\sqrt{-4\times 49}}{2}
Pūrua 0.
x=\frac{0±\sqrt{-196}}{2}
Whakareatia -4 ki te 49.
x=\frac{0±14i}{2}
Tuhia te pūtakerua o te -196.
x=7i
Nā, me whakaoti te whārite x=\frac{0±14i}{2} ina he tāpiri te ±.
x=-7i
Nā, me whakaoti te whārite x=\frac{0±14i}{2} ina he tango te ±.
x=7i x=-7i
Kua oti te whārite te whakatau.
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