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Solve 3x^2 - 4x = 4 by completing the square method
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3x^2-4x=4
3x^2-4x-4= O
3x^2-6x+2x-4=0. ( by middle term splitting)
3x(x-2)+2(x-2)
(3x+2)(x-2) =0
so one of term should be zero.
3x+2=0
3x=-2
x= -2/3
x-2= 0
x=2.
therefore x= -2/3 or 2.
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