
计算:(1)a2+2a+1a2?a?a+1a?1;(2)(?a2b)2÷(?ab2)3?(1ab)4
计算:(1)a2+2a+1a2?a?a+1a?1;(2)(?a2b)2÷(?ab2)3?(1ab)4....
计算:(1)a2+2a+1a2?a?a+1a?1;(2)(?a2b)2÷(?ab2)3?(1ab)4.
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(1)原式=
?
=
;
(2)原式=
×(?
)×
=?
.
故答案为
、?
.
(a+1)2 |
a(a?1) |
a+1 |
a?1 |
a+1 |
a2?a |
(2)原式=
a4 |
b2 |
b6 |
a3 |
1 |
a4b4 |
1 |
a3 |
故答案为
a+1 |
a2?a |
1 |
a3 |
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