$(3x + 2)(3x - 2) - 32 = 9(x - 2)^2$
$9x^2 - 4 - 32 = 9(x^2 - 4x + 4)$
$9x^2 - 4 - 32 = 9x^2 - 36x + 36$
36x = 36 + 4 + 32
36x = 72
x = 2