(2x - 3) ² -3 (x -2) (x+2) = (x- 2) (x -1) +1

x = 2

Пошаговое объяснение:

(2x - 3) ² -3 (x -2) (x+2) = (x- 2) (x -1) + 1​

4x² - 12x + 9 - 3(x² - 4) = x² - 2x - x + 2 + 1

4x² - 12x + 9 - 3x² + 12 = x² - 3x  + 3

x² - 12x + 21 = x² - 3x  + 3

-12x + 3x = 3 - 21

-9x = -18

x = 2