解析
原式=n(n²+2n)+2013
=n(n²+n+n)+2013
=n(n+1)+2013
=n²+n+2013
=1+2013
=2014
希望·对你有帮助
学习进步O(∩_∩)O谢谢不谢,不懂追问,O(∩_∩)O谢谢
猜你喜欢
- 1cake make hat哪个发音不同
- 2abcd式的词语 b和d是反义词
- 3This is a old quilt.
- 4张师傅打算制作一个正方体木箱,使其体积是3.375立方米,试问制作此木箱需要多少木板?
- 5the article sugguests that when a person is under unusual stress he should be especially careful to have a well-balanced
- 6-When I called Tom yesterday,he ( )in the park with his kids.
- 7如果a的平方+b的平方=7,a+b=3,求ab及a-b的值.
- 8填一个反义字,组成一个词.
- 9挫折,成长的一座桥作文800字
- 10脱式、简便、小数(乘除、保留)竖式都可以 斜斜