Question 981419
{{{5*sqrt(x)- x=6}}}

{{{5*sqrt(x) = x+6}}}


square both sides

{{{25x=(x+6)^2}}}

{{{25x = x^2 +12x+36}}}


{{{x^2-13x+36=0}}}

{{{x^2-9x-4x+36=0}}}


{{{x(x-9)-4(x-9)=0}}}

{{{(x-9)(x-4)=0}}}

x=9 OR 4