问题
解答题
计算: (1)-
(2)±
(3)-
(4)
|
答案
(1)原式=-8;
(2)原式=±0.9;
(3)原式=-25 16
=-
;5 4
(4)原式=(26+10)(26-10)
=36×16
=242
=24.
计算: (1)-
(2)±
(3)-
(4)
|
(1)原式=-8;
(2)原式=±0.9;
(3)原式=-25 16
=-
;5 4
(4)原式=(26+10)(26-10)
=36×16
=242
=24.