表达式23: left parenthesis, "x" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesisx·n+n+n+0.5=−n+n
23
表达式24: left parenthesis, "y" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesisy·n+n+n+0.5=−n+n
24
表达式25: left parenthesis, "y" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" minus "n" , right parenthesisy·n+n+n+0.5=−n−n
25
表达式26:
26
表达式27: left parenthesis, negative "x" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" minus "n" , right parenthesis−x·n+n+n−0.5=−n−n
27
表达式28: left parenthesis, negative "x" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesis−x·n+n+n−0.5=−n+n
28
表达式29: left parenthesis, negative "y" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesis−y·n+n+n−0.5=−n+n
29
表达式30: left parenthesis, negative "y" times left parenthesis, "n" plus "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" minus "n" , right parenthesis−y·n+n+n−0.5=−n−n
30
表达式31:
31
表达式32: left parenthesis, "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals left parenthesis, "n" minus "n" , right parenthesisx·n+n+0.5=n−n
32
表达式33: left parenthesis, "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals left parenthesis, "n" plus "n" , right parenthesisx·n+n+0.5=n+n
33
表达式34: left parenthesis, "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals left parenthesis, "n" plus "n" , right parenthesisy·n+n+0.5=n+n
34
表达式35: left parenthesis, "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals left parenthesis, "n" minus "n" , right parenthesisy·n+n+0.5=n−n
35
表达式36:
36
表达式37: left parenthesis, "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" minus "n" , right parenthesisx·n+n+0.5=−n−n
37
表达式38: left parenthesis, "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesisx·n+n+0.5=−n+n
38
表达式39: left parenthesis, "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesisy·n+n+0.5=−n+n
39
表达式40: left parenthesis, "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis plus 0.5 equals left parenthesis, negative "n" minus "n" , right parenthesisy·n+n+0.5=−n−n
40
表达式41:
41
表达式42: left parenthesis, negative "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" minus "n" , right parenthesis−x·n+n−0.5=−n−n
42
表达式43: left parenthesis, negative "x" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals left parenthesis, negative "n" plus "n" , right parenthesis−x·n+n−0.5=−n+n
43
表达式44: left parenthesis, negative "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals negative left parenthesis, "n" plus "n" , right parenthesis−y·n+n−0.5=−n+n
44
表达式45: left parenthesis, negative "y" times left parenthesis, "n" plus "n" , right parenthesis , right parenthesis minus 0.5 equals left parenthesis, negative "n" minus "n" , right parenthesis−y·n+n−0.5=−n−n
