问题
解答题
化简与计算: (1)
(2)4
(3)
(4)
|
答案
(1)原式=2
×(2
-2
)2 2
=2
×2 2 2
=2;
(2)原式=4
÷(-35
)5
=-
;4 3
(3)原式=9x2(x+4)
=3x
;x+4
(4)原式=2a
+3a-a
+a-a a
=6a
.a
化简与计算: (1)
(2)4
(3)
(4)
|
(1)原式=2
×(2
-2
)2 2
=2
×2 2 2
=2;
(2)原式=4
÷(-35
)5
=-
;4 3
(3)原式=9x2(x+4)
=3x
;x+4
(4)原式=2a
+3a-a
+a-a a
=6a
.a