Factorise 2x2 - x + 1/8 =0
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Answer:
2X^2 - X + 1/8 = 0
X^2 - (1/2) X + 1/16 = 0
X^2 - (1/2) X + (1/4)^2 = -(1/16) + (1/4)^2
(X - 1/4)^2 = -1/16 + 1/16 = 0
(X - 1/4) = 0 ; square root of 0 is still 0
X = (1/4) = 1/4 = 0.25 ; only one root
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