Răspunsuri

2014-08-08T12:19:41+03:00
-1 ≤ 2x+3 ≤7 |-3

-4 ≤ 2x  ≤ 4  |:2

-2 ≤ x ≤ 2  =>A= { -2, -1, 0,1,2}

A intersectat N ={0,1,2}