Question

Tuntaskan persamaaan kuadratik berikut:
(X - 1)² - 2X = 0

Answer 1

(x-1)² = (x-1)(x-1) = x² - x - x +1= x² - 2x + 1
maka
(x-1)² - 2x = 0
x²-2x+1 - 2x = 0
x² - 4x + 1 = 0
semoga dapat membantu

Answer 2

      (x - 1)² - 2x = 0
 x² - 2x + 1 - 2x = 0
             x² - 4x = -1
       x² - 4x + 4 = 4 - 1
            (x - 2)² = 3
               x - 2 = √3
     x = 2 + √3   atau x = 2 - √3