∵m为方程x2-
x=0解,
3
∴m2-
m=0,即m(m-
3
)=0,解得m=0或m=
3
;
3
∵原式=
÷(m?1)2
(m+1)(m?1)
(m+1)(m?1)?(m?1) m+1
=
÷(m?1)2 (m+1)(m?1)
m(m?1) m+1
=
×(m?1)2 (m+1)(m?1)
m+1 m(m?1)
=
,1 m
∵当m=0时分式无意义,
∴m=
,
3
∴原式=
=1
3
.
3
3