√2x-2=x-4
как решить?

√2x - 2 = x - 42x - 2 = ( x - 4)²2x - 2 = (x -4)(x - 4)2x - 2 = x² - 4x - 4x + 162x - 2 = x² - 8x + 162x - 2 - x² + 8x - 16 = 0- x² + 10x - 18 =0x² - 10x + 18 = 0D = (-10)² - 4 × 1 × 18 = 100 - 72 = 28x₁,₂ = 10⁺/⁻√28/ 2