问题
解答题
(1)
(2)
(3)
(4)(
|
答案
(1)原式=
-5=6-5=1;36
(2)原式=
=18 2
=18 2
=3;9
(3)原式=2+3+2=7;
(4)原式=(
)2-(5
)2=5-6=-1.6
(1)
(2)
(3)
(4)(
|
(1)原式=
-5=6-5=1;36
(2)原式=
=18 2
=18 2
=3;9
(3)原式=2+3+2=7;
(4)原式=(
)2-(5
)2=5-6=-1.6