x + 20/x – 12 = 0



(vi) x + 20/x – 12 = 0

Sol. x + 20/x – 12 = 0

Multiplying throughout by x, we get,

x2 + 20 – 12x = 0

∴  x2 – 12x + 20 = 0

 x2 – 10x – 2x + 20 = 0

∴  x(x – 10) – 2(x – 10) = 0

∴  (x – 10) (x – 2) = 0

 x – 10 = 0 or x – 2 = 0


 x = 10 or x = 2


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