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3X-3+2
=3X
X = 3/-1
X= -3
2. -2X+4 = 6
-2X = 6-4
-2X = 2
X=-1
3.
9x^2 - 12x + 4 ≥9
9x^2 - 12x - 5 ≥ 0
(3x + 1) (3x - 5) ≥ 0
x ≤ - 1/3 atau x ≥ 5/3
2. (-2x + 4)^2 = 6^2
4x^2 - 16 x + 16 = 36
4x^2 - 16x - 20 = 0
x^2 - 4x - 5 = 0
(x - 5)(x+1)
x = 5 atau x = -1