问题
解答题
计算:(1+
|
答案
原式=[
+x(x-2) x(x-2)
-2(x-2) x(x-2)
]•x(x+1) x(x-2) x(x-2) x+4
=
•-(x+4) x(x-2) x(x-2) x+4
=-1.
计算:(1+
|
原式=[
+x(x-2) x(x-2)
-2(x-2) x(x-2)
]•x(x+1) x(x-2) x(x-2) x+4
=
•-(x+4) x(x-2) x(x-2) x+4
=-1.