问题
解答题
(1)计算:(
(2)化简:
|
答案
(1)原式=4-8×0.125+1+1=4-1+2=5;
(2)原式=
=m2+m-3-m-1 2-m
=-m-2.(m+2)(m-2) 2-m
故答案为5、-m-2.
(1)计算:(
(2)化简:
|
(1)原式=4-8×0.125+1+1=4-1+2=5;
(2)原式=
=m2+m-3-m-1 2-m
=-m-2.(m+2)(m-2) 2-m
故答案为5、-m-2.