问题
解答题
化简、计算 (1)
|
答案
(1)1 2
=20 1 2
=22×5 5
(2)(2)
•3x
=(3x)6xy
(6xy)1 2
=(3)1 2
(x)1 2
(6)1 2
(x)1 2
(y)1 2 1 2
=(18)
(x)1 2
+1 2
(y)1 2
=31 2
x2 y
化简、计算 (1)
|
(1)1 2
=20 1 2
=22×5 5
(2)(2)
•3x
=(3x)6xy
(6xy)1 2
=(3)1 2
(x)1 2
(6)1 2
(x)1 2
(y)1 2 1 2
=(18)
(x)1 2
+1 2
(y)1 2
=31 2
x2 y