Tìm x biết

7)(2x - 3)^2  = (3 – 2x)(2 - 5x)
8)  (x+4)(5x+9) - x = 4

9) (x+6)(3x-1) + x2 - 36=0

6) (1 –x)(5x+3) = (3x -7)(x - 1)

10) (2x - 7)2 + 6(7 - 2x)(x - 3) = 0