(-8)-(+3)(-2)-(-4)(+5) = ???
[(+8)-(-4)(+3)]除[(+2)(-2)] =???
[(+3)-(-4)(-5)]除[(-4)(-3)] =???
(-8)-(+3)(-2)-(-4)(+5) = ???
2007-09-27 4:02 am
回答 (4)
2007-09-27 4:08 am
✔ 最佳答案
1.) (-8)-(+3)(-2)-(-4)(+5) =(-8)-(-6)-(-20)
=(-8)+6+20
=26-8
=18
2.) [(+8)-(-4)(+3)]/[(+2)(-2)]
=[8-(-12)]/(-4)
=(8+12)/(-4)
=20/(-4)
=(-5)
3.) [(+3)-(-4)(-5)]/[(-4)(-3)]
=(3-20)/12
=(-17)/12
=1又(-5)/12
參考: 希望可以幫到你^^"
2007-10-04 2:21 am
(-8)-(+3)(-2)-(-4)(+5)
=-8-(-6)-(-4)(+5)
=-8+6-(-20)
=-8+6+20
=-8+26
=18
[(+8)-(-4)(+3)]除[(+2)(-2)]
=(8)-(-12)/(+2)(-2)
=(+8)+(+12)/-4
=+20/-4
=-5
[(+3)-(-4)(-5)]除[(-4)(-3)]
=(+3)-(+20)/(-4)(-3)
=3-(+20)/+12
=3-20/+12
=-17/12
=1[5/12]
=-8-(-6)-(-4)(+5)
=-8+6-(-20)
=-8+6+20
=-8+26
=18
[(+8)-(-4)(+3)]除[(+2)(-2)]
=(8)-(-12)/(+2)(-2)
=(+8)+(+12)/-4
=+20/-4
=-5
[(+3)-(-4)(-5)]除[(-4)(-3)]
=(+3)-(+20)/(-4)(-3)
=3-(+20)/+12
=3-20/+12
=-17/12
=1[5/12]
2007-09-27 5:40 am
(-8)-(+3)(-2)-(-4)(+5)
= (-8)-(-6)-(-20)
= (-8)+6+20
= 34
= 18
[(+8)-(-4)(+3)]除[(+2)(-2)]
= [(+8)-(-12)]/[-4]
= 20/(-4)
= (-5)
[(+3)-(-4)(-5)]除[(-4)(-3)]
= [3-(+20)]/[12]
= (-17)/12
= (-1.4167)
= (-8)-(-6)-(-20)
= (-8)+6+20
= 34
= 18
[(+8)-(-4)(+3)]除[(+2)(-2)]
= [(+8)-(-12)]/[-4]
= 20/(-4)
= (-5)
[(+3)-(-4)(-5)]除[(-4)(-3)]
= [3-(+20)]/[12]
= (-17)/12
= (-1.4167)
2007-09-27 4:08 am
(-8)-(+3)(-2)-(-4)(+5) =+18
[(+8)-(-4)(+3)]除[(+2)(-2)] =-5
[(+3)-(-4)(-5)]除[(-4)(-3)] =-17/12
[(+8)-(-4)(+3)]除[(+2)(-2)] =-5
[(+3)-(-4)(-5)]除[(-4)(-3)] =-17/12
收錄日期: 2021-04-18 23:29:41
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070926000051KK04841