Whakaoti mō x
x\in \left(0,7\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
-7x+x^{2}<0
Me whakarea te koreōrite ki te -1 kia tōrunga ai te tau whakarea o te pū tino teitei i 7x-x^{2}. I te mea he tōraro a -1, ka huri te ahunga koreōrite.
x\left(x-7\right)<0
Tauwehea te x.
x>0 x-7<0
Kia tōraro te otinga, me tauaro rawa ngā tohu o te x me te x-7. Whakaarohia te tauira ina he tōrunga te x he tōraro te x-7.
x\in \left(0,7\right)
Te otinga e whakaea i ngā koreōrite e rua ko x\in \left(0,7\right).
x-7>0 x<0
Whakaarohia te tauira ina he tōrunga te x-7 he tōraro te x.
x\in \emptyset
He teka tēnei mō tētahi x ahakoa.
x\in \left(0,7\right)
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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