问题
解答题
化简
|
答案
原式=
-1 2(m-2) 2 (m+2)(m-2)
=m+2-4 2(m+2)(m-2)
=m-2 2(m+2)(m-2)
=
．1 2(m+2)
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化简
|
原式=
-1 2(m-2) 2 (m+2)(m-2)
=m+2-4 2(m+2)(m-2)
=m-2 2(m+2)(m-2)
=
．1 2(m+2)