问题
解答题
选择合适的方法计算: (1)
(2)
(3)
(4)
|
答案
(1)
=15 6
=15 6
;10 2
(2)
=33 6 3
;2
(3)原式=
÷16 5
=8 5
=
×16 5 5 8
;2
(4)原式=
=4y 2xy
=2 x
.2x x
选择合适的方法计算: (1)
(2)
(3)
(4)
|
(1)
=15 6
=15 6
;10 2
(2)
=33 6 3
;2
(3)原式=
÷16 5
=8 5
=
×16 5 5 8
;2
(4)原式=
=4y 2xy
=2 x
.2x x