试题与答案

(13a3b)-(-9a2b3)÷(-12a5b3)

题型:解答题

题目:

1
3
a3b)-(-9a2b3)÷(-
1
2
a5b3

答案:

原式=

1
3
×(-9)a3+2b1+3÷(-
1
2
a5b3

=-3×(-2)b

=6b.

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