Whakaoti mō d
d=21
Whakaoti mō p (complex solution)
p\in \mathrm{C}
d=21
Whakaoti mō p
p\in \mathrm{R}
d=21
Tohaina
Kua tāruatia ki te papatopenga
21+0p=d
Whakareatia te 0 ki te 25, ka 0.
21+0=d
Ko te tau i whakarea ki te kore ka hua ko te kore.
21=d
Tāpirihia te 21 ki te 0, ka 21.
d=21
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
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{ x } ^ { 2 } - 4 x - 5 = 0
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