问题
填空题
计算:(2xy-y)-(-y+xy)=______;-3×(1-
|
答案
(2xy-y)-(-y+xy)
=2xy-y+y-xy
=xy;
-3×(1-
x)1 6
=-3+
x.1 2
故答案为:xy;-3+
x.1 2
计算:(2xy-y)-(-y+xy)=______;-3×(1-
|
(2xy-y)-(-y+xy)
=2xy-y+y-xy
=xy;
-3×(1-
x)1 6
=-3+
x.1 2
故答案为:xy;-3+
x.1 2