x² = 37 - 1x² = 2x = ±5
(x-5)² = 12x-5 = ±√12x-5 = ±5√x = 5±5√5
x(x² - 4) = x(x-2)(x+2) = x = 0, 2, -2
x² = 37 - 1
x² = 2
x = ±5
(x-5)² = 12
x-5 = ±√12
x-5 = ±5√
x = 5±5√5
x(x² - 4) =
x(x-2)(x+2) =
x = 0, 2, -2