(vi) 3x²-x-4 someone please help with middle term splitting
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3x^2 -x - 4= 0
3x^2 -4x+3x-4=0
x(3x - 4) + 1 (3x -4)=0
(x +1)(3x - 4) = 0
x = -1 or x = 4/3
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