化简√ x三次方-2x²+x (x>1)

化简√ x三次方-2x²+x (x>1)
化简√ x三次方-2x²+x (x>1)

化简√ x三次方-2x²+x (x>1)
x>1
x-1>0
原式=√[x(x-1)²]
=|x-1|√x
=(x-1)√x

（x-1）√x