Whakaoti mō x
x\in \left(0,4\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
x^{2}-4x<0
Me whakarea te koreōrite ki te -1 kia tōrunga ai te tau whakarea o te pū tino teitei i -x^{2}+4x. I te mea he tōraro a -1, ka huri te ahunga koreōrite.
x\left(x-4\right)<0
Tauwehea te x.
x>0 x-4<0
Kia tōraro te otinga, me tauaro rawa ngā tohu o te x me te x-4. Whakaarohia te tauira ina he tōrunga te x he tōraro te x-4.
x\in \left(0,4\right)
Te otinga e whakaea i ngā koreōrite e rua ko x\in \left(0,4\right).
x-4>0 x<0
Whakaarohia te tauira ina he tōrunga te x-4 he tōraro te x.
x\in \emptyset
He teka tēnei mō tētahi x ahakoa.
x\in \left(0,4\right)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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