Whakaoti mō x
x\in (-\infty,-\frac{1}{2})\cup [\frac{4}{5},\infty)
Graph
Tohaina
Kua tāruatia ki te papatopenga
4-5x\geq 0 2x+1<0
Kia ≤0 rawa te otinga, hei ≥0 tonu tētahi o ngā uara o 4-5x me 2x+1, hei ≤0 anō tērā atu, otiia tē taea ai hei kore te 2x+1. Whakaarohia te tauira ina tōraro tahi a 4-5x\geq 0 me 2x+1.
x<-\frac{1}{2}
Te otinga e whakaea i ngā koreōrite e rua ko x<-\frac{1}{2}.
4-5x\leq 0 2x+1>0
Whakaarohia te tauira ina tōrunga tahi a 4-5x\leq 0 me 2x+1.
x\geq \frac{4}{5}
Te otinga e whakaea i ngā koreōrite e rua ko x\geq \frac{4}{5}.
x<-\frac{1}{2}\text{; }x\geq \frac{4}{5}
Ko te otinga whakamutunga ko te whakakotahi i ngā otinga kua whiwhi.
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