factorise 2/x^2-5/x+2=0 by completing square method
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2/x^2 - 5/x +2 = 0taking LCM,2-5x+2x^2=0transfer 2 to RHS,divide LHS and RHS by the coefficient of x^2,x^2 -5x/2 = -1add the square of the coefficent of x on both sides,x^2 -5x/2 +25/4 = -1 + 25/4(x-5/2)^2 = 21/4x - 5/2 = √21/4x = √ 21+5/2 and - √ 21+5/2
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