Question

Rozwiąż nierównosci kwadratowe

4xkwadrat+1<0

1/9xkwadrat-4>0

7xkwadrat+10 <0

Answer 1

4x2<-1/:4                               1/9x2>4/:1/9      7x2<-10/:7

x2<-1/4                                   x2>36                  x2<-10/7

x<pierwiastek z -1:2                  x>6                     x<pierwiastek z -10:7

Answer 2

4x2<-1/:4 1/9x2>4/:1/9 7x2<-10/:7

x2<-1/4 x2>36 x2<-10/7

x<pierwiastek z -1:2 x>6 x<pierwiastek z -10:7