Tìm x biết:

Tìm x biết:

1) 25(3x - 10)^2 - 4x^2 + 4x -1 = 0

2) 9(6x + 1)^2 - 144(x^2 - 6x + 9) = 0

3) (x + 3)^2 - (x + 2)(x - 2) = 4x + 17

4) 3(x - 1)^2 + (x + 5) (2 - 3x) = -25

5) (x + 3) ^2+ (x - 2)^2 = 2x

6) (4x - 3)^3 - 125 = 0

7) (5x + 1)^3 - 8x^3 = 0

8) 64(2x - 1)^3 - 216x^3 = 0

9) (4x + 5)^3 - 27(x^3 - 3x^2 + 3x - 1) = 0

10) (2x - 3)^3 - 9(2x - 3) = 0

11) (4x - 5)^3 - 49(4x - 5) = 0

12) 16(3x - 2)^3 - 6x + 4 = 0

13) 7(5x - 1)^3 - 140x + 28 = 0