Question 76807
{{{sqrt (x^3-x^2) }}} + {{{sqrt (9x-9) }}}
= {sqrt (x^2*(x-1)) } + {sqrt (3^2*(x-1)) }
= |x|*{sqrt (x-1)}+ 3*{sqrt(x-1)}
= {|x|+3}*{sqrt (x-1) }