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(2x-1)(x-1) = 0
hp.nya :
2x-1 = 0 atau x -1 = 0
2x = 1 x = 1
x = 1/2
2x²-2x-x+1 = 0
2x(x-1) -1 (x-1) = 0
(2x-1) (x-1) = 0
x-1 = 0
x = 0+1
x = 1