3-x>2+4x қалай шығарады?

Question

1) 3-x>2+4x

2) 3,6-5x<2x+17,6

3) 9-4x>25

4) 5x²+9x-2<0

5) 21x²+39x-6<0

6) x²-x-6<0

7) 81-x²<0

Answer 1

3-x>2+4x            

-5x>5                 

x>-1

озын шыгар калганын уйрен

Answer 2

3-x>2+4x

-x-4x>2-3

-5x>-1

x>0.2

 

3.6-5x<2x-17.6

-5x-2x<17.6-3.6

-7x=14

x=-2

 

9-4x>25

-4x>25-9

-4x>16

x>-4

 

5x^2+9x-2<0

x(5x+9)<2       бул тендеудин еки жауабы бар ^бул дареже белгиси

x<2                   5x+9<2

                         5x<2-9

                          5x<-7

                         x<-1.4

                         

21x^2+39x-6<0

3x(7x+13)<6

3x<6             7x+13<6

x<2                7x<6-13

                      7x<-7

                        x<-1

 

x^2-x-6<0

x(x-1)<6                x-1<6

x<6                       x<7

 

81-x^2<0

(9-x)(9+x)<0

9-x<0         9+x<0

-x<9           x<-9