题目内容
(1)计算xy÷
的结果是______;
(2)化简
÷
=______.
y |
x |
(2)化简
2(a+1) |
a2+2a+1 |
2 |
a+1 |
(1)原式=xy•
=x2;
(2)原式=
•
=1.
故答案为x2;1.
x |
y |
(2)原式=
2(a+1) |
(a+1)2 |
a+1 |
2 |
=1.
故答案为x2;1.
练习册系列答案
相关题目
题目内容
y |
x |
2(a+1) |
a2+2a+1 |
2 |
a+1 |
x |
y |
2(a+1) |
(a+1)2 |
a+1 |
2 |