Let x=2, y=-3 and z=-1
that is 3(-1) squared
3z(square 2)-2x+3y?
2007-03-01 4:55 am
回答 (3)
2007-03-01 5:04 am
✔ 最佳答案
=> Yes, there is=> 3(-1squared) - 2(2) + 3(-3)
-1 squared is 1 as two negatives make positive
=> 3(1) - 4 + (-9)
+ and - makes negative
=> 3 - 4 - 9
=> 3 - 13
=> -10
2007-03-01 1:10 pm
3(-1)squared-2(2)+3(-3)
= 3-4-9
= -10
= 3-4-9
= -10
2007-03-01 1:00 pm
3*(-1) (sc.2)-2*2+3*(-3)=
=-3(sc2)-13
=-3(sc2)-13
收錄日期: 2021-04-30 23:02:40
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https://hk.answers.yahoo.com/question/index?qid=20070228205526AAbMfTy