Question

不会啊！！！！

Answer 1

 

Answer 2

a与b的差a-b，a与b的和的n倍（a+b）n，比c的5倍多8 5c+8， a+8b， a2+2， 5x+y-10

Answer 3

a 减b. (a +b )n. c 5+8 a +8b. a 二四方+2 5x+y 减10

Answer 4

a-b
n（b+a）
5c+8
a+8b
a的平方加2
5x+y-10

Answer 5

a-b （a+b）n 5c+8 a+8b a平方+2 5x+y-10

Answer 6