Tìm x biết

Bài 2: Tìm x biết:
2
1
3
3) — x-2=2x+1
1)
6)
3
5
9) 2* +2**³ = 144
14) (8x³ + 1) (2x² - 6) = 0
2)
4) 2x-
7)
23
3
4
-3x = -2
1
6
(|x-1|-2)(---x-2)=0
21
3 2
12)
15) (3x+3)+(4x²-4)' = 0
3)
5) (x²+4).(9x²-1) = 0
-G
13) (x-1)(x² + 2) = 0
16) x(x−3)+9=x +5r
8)
31
1
36
11
5
6