Răspuns:
2) dreptunghic isoscel (T45°)
3) 2x + 3 = - 11
2x = - 11 - 3
2x = - 14
x = - 7
4) (- 4)² = (-4)×(-4) = 16
3³ = 3×3 = 9
16 > 9 => (- 4)² > 3²
5) | 2x - 1 | = 5
2x = 5 + 1 => 2x = 6 => x₁ = 3
2x = - 5 + 1 => 2x = - 4 => x₂ = - 2
6) x + 2 < 1
x < 1 - 2
x < - 1
x ∈ (- oo ; - 1) ∩ Z
