问题
解答题
化简与计算: (1)
(2)
|
答案
(1)原式=
×4x1 2
+2x•2x
-x2•2x 2
=2x5 2x x
+x2x
-5x2x
=-2x2x
;2x
(2)原式=2-
+33
-23
=2.3
化简与计算: (1)
(2)
|
(1)原式=
×4x1 2
+2x•2x
-x2•2x 2
=2x5 2x x
+x2x
-5x2x
=-2x2x
;2x
(2)原式=2-
+33
-23
=2.3