(9x - 3)² - (x - 11)² = 0
(9x - 3 - x + 11)(9x - 3 + x - 11) = 0
(8x + 8)(10x - 14) = 0
или 8x + 8 = 0 или 10x - 14 = 0
8x = - 8 10x = 14
x₁ = -1 x₂ = 1,4
(9x - 3)² - (x - 11)² = 0
(9x - 3 - x + 11)(9x - 3 + x - 11) = 0
(8x + 8)(10x - 14) = 0
или 8x + 8 = 0 или 10x - 14 = 0
8x = - 8 10x = 14
x₁ = -1 x₂ = 1,4