问题
解答题
计算:(
|
答案
(
+x-2 x+2
)÷4x x2-4 1 x2-4
=
×(x+2)(x-2)+x-2 x+2
×(x2-4)4x x2-4
=(x-2)2+4x
=x2-4x+4+4x
=x2+4
计算:(
|
(
+x-2 x+2
)÷4x x2-4 1 x2-4
=
×(x+2)(x-2)+x-2 x+2
×(x2-4)4x x2-4
=(x-2)2+4x
=x2-4x+4+4x
=x2+4