Whakaoti mō x
x\in (-\infty,-2]\cup (\frac{1}{2},\infty)
Graph
Tohaina
Kua tāruatia ki te papatopenga
2x-1>0 2x-1<0
Kāore e taea a te tauraro 2x-1 te numa kore nā te mea kāore te rituatanga mā te kore e tautuhi. E rua ngā kēhi.
2x>1
Whakaarohia te kēhi i ngā wā kei te tōrunga a 2x-1. Neke atu a -1 ki te taha matau.
x>\frac{1}{2}
Whakawehea ngā taha e rua ki te 2. I te mea he tōrunga te 2, kāore e huri te ahunga koreōrite.
3x+1\geq 2x-1
Kāore te tōrite tuatahi e whakarerekē te aronga ina e whakarea ana mā 2x-1 mō 2x-1>0.
3x-2x\geq -1-1
Neke atu ngā kīanga tau e whai ana i x ki te taha mauī me ētahi atu kupu katoa ki te taha matau.
x\geq -2
Pahekotia ngā kīanga tau ōrite.
x>\frac{1}{2}
Whakaarohia te herenga x>\frac{1}{2} e tautuhi ana ki runga.
2x<1
Tēnā, me whakaarohia te tauira ina e tōraro a 2x-1. Neke atu a -1 ki te taha matau.
x<\frac{1}{2}
Whakawehea ngā taha e rua ki te 2. I te mea he tōrunga te 2, kāore e huri te ahunga koreōrite.
3x+1\leq 2x-1
E whakarerekē ana te aronga o te tōrite tuatahi hei ngā wā e whakarea ana a 2x-1 mō 2x-1<0.
3x-2x\leq -1-1
Neke atu ngā kīanga tau e whai ana i x ki te taha mauī me ētahi atu kupu katoa ki te taha matau.
x\leq -2
Pahekotia ngā kīanga tau ōrite.
x\in (-\infty,-2]\cup (\frac{1}{2},\infty)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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