配套习题- 如何合并同类项 -【青果学院】

挑战习题

1/5单选题

难度：

1.代数式

的值（）

A	与字母x、y无关
B	只与x有关
C	只与y有关
D	与字母x、y都有关

提示1：: IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWIme+8muezu+aVsOebuOWKoOS9nOS4uuezu+aVsO+8jOWtl+avjeWSjOWtl+avjeeahOaMh+aVsOS4jeWPmO+8jOWNs+WPr+S9nOWHuuWIpOaWrQ==

正确答案：QQ==

PGRpdj7op6PvvJrljp/lvI89PGltZyB3aWR0aD0zNjggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMDEvRTMvckJBQ0ZGTU5YNFNCWHRnY0FBQUVTUlZhOTFJMjQ0LnBuZyI+PC9kaXY+

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2/5单选题

难度：

2.下列句子中错误的是（　　）
①如果两项的字母相同，那么这两项是同类项；
②所含字母相同，并且相同字母的指数也分别相同的项叫同类项；
③系数相同的项能合并；
④系数互为相反数的同类项合并后为零

A	①③
B	②④
C	①④
D	②③

提示1：: IOaNruWQjOexu+mhueeahOWumuS5ieWPiuWQiOW5tuWQjOexu+mhueeahOazleWIme+8jOe7k+WQiOWQhOmhuei/m+ihjOWIpOaWrQ==

正确答案：QQ==

PGRpdj7op6PvvJrikaDmsqHmnInlvLrosIPnm7jlkIzlrZfmr43nmoTmjIfmlbDnm7jlkIzvvIzmlYXmnKzpobnplJnor6/vvJs8YnI+4pGh5q2j56Gu77ybPGJyPuKRouezu+aVsOebuOWQjOeahOmhueS4jeS4gOWumuiDveWQiOW5tu+8jOS+i+Wmgm3jgIFu57O75pWw6YO95pivMe+8jOS9huS4jeiDveWQiOW5tu+8jOaVheacrOmhuemUmeivr++8mzxicj7ikaPmraPnoa4uIDwvZGl2Pg==

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3/5单选题

难度：

3.下列合并同类项正确的是（　　）

A
B
C
D

提示1：: IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWIme+8muaKiuWQjOexu+mhueeahOezu+aVsOebuOWKoO+8jOaJgOW+l+e7k+aenOS9nOS4uuezu+aVsO+8jOWtl+avjeWSjOWtl+avjeeahOaMh+aVsOS4jeWPmO+8jOe7k+WQiOWQhOmAiemhuei/m+ihjOWIpOaWrQ==

正确答案：RA==

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4/5单选题

难度：

4.如果多项式

不含ab项，则k的值为（　　）

A	0
B	7
C	1
D	3

提示1：: IOagueaNrumimOaEj+KAnOS4jeWQq2Fi6aG54oCd5pWFYWLpobnnmoTns7vmlbDkuLow77yM55Sx5q2k5Y+v5b6X5Ye6a+eahOWAvA==

正确答案：Qg==

PGRpdj7op6PvvJriiLXkuI3lkKthYumhue+8jOKItC03K2s9MO+8jGs9Ny4gPC9kaXY+

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5/5单选题

难度：

5.下列运算中正确的是（　　）

A
B
C
D

提示1：: IOagueaNruWQiOW5tuWQjOexu+mhueeahOazleWImeS+neasoeWIpOaWrQ==

正确答案：QQ==

PGRpdj7op6PvvJo8aW1nIHdpZHRoPTkzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzI0L0Q0L3JCQUNFMU1OWDZTRGg2Q2xBQUFCXzNROXE4QTAzMy5wbmciPjwvZGl2Pg==

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