Question

Poza! cum se rezolva cele 2 probleme ( rezolvare completa ) va rooog e urgent! Multumesc

Answer 1

A 1. 2x + 1 ≤ 5 / 2x=4/ x≤2
sau (modulul are valoare negativa SI pozitiva)
2. 2x + 1 ≤ -5/ 2x=-6/ x≤-3
A∈(-3,-2,-1,0,1,2)
B -3∠ x+1/2∠1 / -6∠x+1∠2/ -7∠x∠1
B∈(-7,-6,-5,-4,-3,-2,-1,0)
1. nr care apar in A SI B toate
2. nr care apar(...) comune
3. nr care apar in A dar nu si in B
4 invers ca la 3.