Question

Va roooogggg!! Dau coroaaaannnăăăă!!​

Answer 1

Răspuns:

|x|<3

-3<x<3

x={-2;-1;0;1;2}

b) -5<=x<=5

x={-5;-4;-3;-2;-1;0;1;2;3;4;5}

c) |2x+5|<=3

-3<=2x+5<=3 (scad un 5)

-3-5<=2x<=3-5

-8<=2x<=-2 (impart la 2)

-8:2<=2x:2<=2:2

-4<=x<=1

x={-4;-3;-2;-1;0;1}

d) |3x+3|>=6

-6>=3x+3>=6 (scad un 3)

-6-3>=3x>=6-3

-9>=3x>=3(impart la 3)

-9:3>=3x:3>=3:3

-3>=x>=1

x={1;0;-1;-2;-3}