(3x-2) ( x-2) = x-2 (x+2)
3x² - 8x + 4 = x²- 4
2x² - 8x + 8 = 0
x² - 4x +4 = 0
(x-2)² =0
x=2
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(3x-2) ( x-2) = x-2 (x+2)
3x² - 8x + 4 = x²- 4
2x² - 8x + 8 = 0
x² - 4x +4 = 0
(x-2)² =0
x=2