中二數======化簡下列各代數分式

bbb/(a-c) * (4a-4c)/2b
= bbb/(a-c)*4(a-c)/2b
=2bb
化簡下列各代數分式
(uv+2u)/uv * v v/(v+2)
=u(v+2)/uv * v v/(v+2)
=v

bbb/(a-c) * (4a-4c)/2b

=bb/(a-c)*(4a-4c)/2

=bb/(a-c)*[2(a-c)]/2

=bb*2 / b^2*2


(uv+2u)/uv * v v/(v+2)

=u(v+2)/uv * v v/(v+2)

=u*v v/uv

=v

2007-01-04 17:21:56 補充：
bbb/(a-c) * (4a-4c)/2b=2bb(最後答案)希望能help你啦~

1)2b^2 (bb)
2)v