问题 解答题
计算:
(1)(
3
-1)2-|2
3
-3
2
|-(-
2
3
(2)(
6
5
a3x4-0.9ax3)÷
3
5
ax3
答案

(1)(

3
-1)2-|2
3
-3
2
|-(-
2
3

=3+1-2

3
+2
3
-3
2
+2
2

=4-

2

(2)(

6
5
a3x4-0.9ax3)÷
3
5
ax3

=

6
5
a3x4÷
3
5
ax3-0.9ax3÷
3
5
ax3

=2a2x-

3
2

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