1. 3a-2+4a+3+a-5
2. -5x+3+x-8+3x+2
數學吾識做
2008-02-13 7:27 pm
回答 (2)
2008-02-13 7:34 pm
✔ 最佳答案
1. 3a-2+4a+3+a-5 = (3a+4a+a)+(-2+3-5) = 8a-42. -5x+3+x-8+3x+2 = (-5x+x+3x)+(3-8+2) = -x-3
參考: 自己
2008-02-13 8:02 pm
1.3a-2+4a+3+a-5
=3a+4a+a-2+3-5
=8a-4
2.-5x+3+x-8+3x+2
=-5x+x+3x+3-8+2
=-1x-3
=3a+4a+a-2+3-5
=8a-4
2.-5x+3+x-8+3x+2
=-5x+x+3x+3-8+2
=-1x-3
參考: myself!!!!!
收錄日期: 2021-04-13 15:07:55
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