问题
解答题
-12-[1
|
答案
原式-12-[1
+(-12)÷6]2×(-3 7
)33 2
=-1 -[1
+(-2)]2×(-3 7
) 27 8
=-1 -
×(-16 49
) 27 8
=-1 +54 49
=
.5 49
-12-[1
|
原式-12-[1
+(-12)÷6]2×(-3 7
)33 2
=-1 -[1
+(-2)]2×(-3 7
) 27 8
=-1 -
×(-16 49
) 27 8
=-1 +54 49
=
.5 49