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2(2x-2) = x²
4x - 4 = x²
x² - 4x + 4 = 0
(x -2) = 0
x = 2 ,
y = -2x-2
y = -2(2) - 2
y = -4 - 2
y = - 6
titik potong (x,y) = (2, -6)