问题
填空题
计算: (1)
(2)
(3)
(4)(
|
答案
(1)原式=3
+62
-42
=52
;2
(2)原式=2
-3x
=-x
;x
(3)原式=3
-23
+3
=2 3 3
;5 3 3
(4)原式=(2
-23
)÷(42
-43
)=2
.1 2
计算: (1)
(2)
(3)
(4)(
|
(1)原式=3
+62
-42
=52
;2
(2)原式=2
-3x
=-x
;x
(3)原式=3
-23
+3
=2 3 3
;5 3 3
(4)原式=(2
-23
)÷(42
-43
)=2
.1 2