问题 解答题
化简:
(1)
2x2-x
2x-1

(2)
bc3
a2
(a>0,b≥0,c≥0)
答案

(1)

2x2-x
2x-1
=
x(2x-1)
2x-1
=x
2x-1

(2)

bc3
a2
=
c
bc
a
(a>0,b≥0,c≥0);

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