Question 63276
 x - sqrt(x) = 0
==> x = sqrt(x)  [adding sqrt(x) on both sides]
==> x^2 = x  [on squaring]
==> x^2 - x = 0  [adding - x to both the sides]
==> x(x-1) = 0
==> x = 0  or x-1 = 0
==> x = 0  or x = 1



Good Luck!!!