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(6x+1) = 0 atau (3x-1) = 0
x = -1/6 atau x = 1/3
12y2 - 6y - 2y + 1 = 6y(2y-1) - (2y-1) = (6y-1) (2y-1)
y= 1/6 atau y= 1/2
= 1-3x+6x-18x²
= 1(1-3x) + 6x (1-3x)
= (1+6x) (1-3x)
b.-12y² + 8y-1
= -12y²+6y+2y-1
= -6y(2y-1) + 1 (2y-1)
= (-6y+1) (2y-1)