1)
2x — 4 > 6
2x>10
x>5
x(5;∞)
2x + 3 ≤ 1
2x<-2
x<-1
x(-1;-∞)
7x — 7 > — 7
7x>0
x>0
10x — 20 > 30
10x>50
x>5
x(5;∞)
25x — 50 ≤ 25
4(x — 2) > 2(x + 2)
10(x — 4) ≥ 8(x + 2)
2(x — 3) > 4(x + 3)
5(x — 2) ≤ 7(x — 3)
2)
x(x — 5) > 0
x(2x — 6) > 0
(2x — 4)(3x + 3) > 0
(8x + 8)(4x — 4) < 0
x(x + 2)(x — 5) ≤ 0
(x — 5)(x — 1)(x + 2) > 0
(2x — 4)(4x + 4)(5x + 20) > 0
3)
(x — 4)/(x + 3) > 0
(x — 9)/(x + 2) ≥ 0
(x — 3)/(x + 8) > 0
(x + 3)/(x — 3) ≤ 0
Մանվել Դավթյան 