Tolong bantu y kk/abg...Ok

1.
5x² - 4x = x² + 8
5x² - 4x - x² - 8 = 0
4x² - 4x - 8 = 0
x² - x - 2 = 0
(x - 2)(x + 1) = 0
x = 2  ∨   x = -1

2. 
x² - 3x + 2 = 5x - 10
x² - 8x + 12 = 0
(x - 2)(x - 6) = 0
x = 2   ∨   x = 6