问题
解答题
计算: (1)(-3)2×
(2)12ab2(abc)4÷(-3a2b3c)÷[2(abc)3]. |
答案
(1)原式=9×4-3×1
=36-3
=33;
(2)原式=12ab2•a4b4c4÷(-3a2b3c)÷2a3b3c3
=-2.
计算: (1)(-3)2×
(2)12ab2(abc)4÷(-3a2b3c)÷[2(abc)3]. |
(1)原式=9×4-3×1
=36-3
=33;
(2)原式=12ab2•a4b4c4÷(-3a2b3c)÷2a3b3c3
=-2.