Whakaoti mō x
x\in \left(-\infty,-2\right)\cup \left(2,\infty\right)
Graph
Tohaina
Kua tāruatia ki te papatopenga
x+2<0 x-2<0
Kia tōrunga ai te otinga, hei tōraro tahi a x+2 me x-2, hei tōrunga tahi rānei. Whakaarohia te tauira ina he tōraro tahi te x+2 me te x-2.
x<-2
Te otinga e whakaea i ngā koreōrite e rua ko x<-2.
x-2>0 x+2>0
Whakaarohia te tauira ina he tōrunga tahi te x+2 me te x-2.
x>2
Te otinga e whakaea i ngā koreōrite e rua ko x>2.
x<-2\text{; }x>2
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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