1.p二次方x(-qp二次方)x3p二次方q二次方
2.(9ab三次方/2a三次方b)負二次方x(3a二次方b負二次方/4a負二次方b四次方)三次方
中三數學問題(10)
2007-11-06 2:46 am
回答 (2)
2007-11-06 3:01 am
✔ 最佳答案
1.(p2)(-qp2)(3p2q2)= -3p2+2+2 q1+2
= -3p6 q3
2.(9ab3/2a3b)-2(3a2b-2/4a-2b4)3
= (2a3b/9ab3)2×(3a2b-2/4a-2b4)3
= (4a6b2/81a2b6)×(27a6b-6/64a-6b12)
= 108a6+6b2+(-6)/5184a2+(-6)b6+12
= 108a12b-4/5184a-4b18
= a12-(-4)/48b18-(-4)
= a12+4/48b18+4
= a16/48b22
根據指數定律，am/an= am-n
am×an= am+n
a-n= 1/an
收錄日期: 2021-04-19 01:25:47
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071105000051KK08452