问题
解答题
(
|
答案
(
x2 3
+6x9x
)-(x2y x
-y1 x
)x y
=
x×32 3
+6x×x
-(xxy x
-x
),xy
=2x
-xx
+6x
+xy
,xy
=x
+7x
.xy
(
|
(
x2 3
+6x9x
)-(x2y x
-y1 x
)x y
=
x×32 3
+6x×x
-(xxy x
-x
),xy
=2x
-xx
+6x
+xy
,xy
=x
+7x
.xy