Question 485371
{{{5sqrt(x) - sqrt(x-1) = 6}}}
{{{5sqrt(x) = sqrt(x-1) + 6}}}
Square both sides
{{{25x = (x-1) + 12sqrt(x-1) + 36}}}
{{{24x - 35 = 12sqrt(x-1)}}}
Square again
{{{576x^2 - 1680x + 1225 = 144(x-1)}}}
{{{576x^2 - 1824x + 1369 = 0}}}
Just a quadratic now.