Whakaoti mō x
x = \frac{5}{3} = 1\frac{2}{3} \approx 1.666666667
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{2}=\left(x-10\right)\left(x-2\right)
Tē taea kia ōrite te tāupe x ki tētahi o ngā uara 2,10 nā te kore tautuhi i te whakawehenga mā te kore. Whakareatia ngā taha e rua o te whārite ki te \left(x-10\right)\left(x-2\right).
x^{2}=x^{2}-12x+20
Whakamahia te āhuatanga tuaritanga hei whakarea te x-10 ki te x-2 ka whakakotahi i ngā kupu rite.
x^{2}-x^{2}=-12x+20
Tangohia te x^{2} mai i ngā taha e rua.
0=-12x+20
Pahekotia te x^{2} me -x^{2}, ka 0.
-12x+20=0
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-12x=-20
Tangohia te 20 mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
x=\frac{-20}{-12}
Whakawehea ngā taha e rua ki te -12.
x=\frac{5}{3}
Whakahekea te hautanga \frac{-20}{-12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te -4.
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