求下面数学整式加减法的计算过程及答案(详细清楚)(-x+2x2+5)+(4x2-3-6x) (3a2-ab+7)-(-4a2+2ab+7) 5(3a2b-ab2)-(ab2+3a2b) -x+(2x-2)-(3x+5) 3a2+a2-(2a2-2a)+(3a-a2) (2x2-2/1+3x)-4(x-x2+2/1) 3x2-[7x-(4x-3)-2x2] (-x2+5+4x)+(5x-4+2x
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 16:22:26
![求下面数学整式加减法的计算过程及答案(详细清楚)(-x+2x2+5)+(4x2-3-6x) (3a2-ab+7)-(-4a2+2ab+7) 5(3a2b-ab2)-(ab2+3a2b) -x+(2x-2)-(3x+5) 3a2+a2-(2a2-2a)+(3a-a2) (2x2-2/1+3x)-4(x-x2+2/1) 3x2-[7x-(4x-3)-2x2] (-x2+5+4x)+(5x-4+2x](/uploads/image/z/7825050-18-0.jpg?t=%E6%B1%82%E4%B8%8B%E9%9D%A2%E6%95%B0%E5%AD%A6%E6%95%B4%E5%BC%8F%E5%8A%A0%E5%87%8F%E6%B3%95%E7%9A%84%E8%AE%A1%E7%AE%97%E8%BF%87%E7%A8%8B%E5%8F%8A%E7%AD%94%E6%A1%88%EF%BC%88%E8%AF%A6%E7%BB%86%E6%B8%85%E6%A5%9A%EF%BC%89%EF%BC%88-x%2B2x2%2B5%29%2B%284x2-3-6x%29+%283a2-ab%2B7%29-%28-4a2%2B2ab%2B7%29+5%283a2b-ab2%29-%28ab2%2B3a2b%29+-x%2B%282x-2%29-%283x%2B5%29+3a2%2Ba2-%282a2-2a%29%2B%283a-a2%29+%EF%BC%882x2-2%2F1%2B3x%29-4%28x-x2%2B2%2F1%29+3x2-%5B7x-%284x-3%29-2x2%5D+%28-x2%2B5%2B4x%29%2B%285x-4%2B2x)
求下面数学整式加减法的计算过程及答案(详细清楚)(-x+2x2+5)+(4x2-3-6x) (3a2-ab+7)-(-4a2+2ab+7) 5(3a2b-ab2)-(ab2+3a2b) -x+(2x-2)-(3x+5) 3a2+a2-(2a2-2a)+(3a-a2) (2x2-2/1+3x)-4(x-x2+2/1) 3x2-[7x-(4x-3)-2x2] (-x2+5+4x)+(5x-4+2x
求下面数学整式加减法的计算过程及答案(详细清楚)
(-x+2x2+5)+(4x2-3-6x) (3a2-ab+7)-(-4a2+2ab+7) 5(3a2b-ab2)-(ab2+3a2b) -x+(2x-2)-(3x+5) 3a2+a2-(2a2-2a)+(3a-a2) (2x2-2/1+3x)-4(x-x2+2/1) 3x2-[7x-(4x-3)-2x2] (-x2+5+4x)+(5x-4+2x2)
求下面数学整式加减法的计算过程及答案(详细清楚)(-x+2x2+5)+(4x2-3-6x) (3a2-ab+7)-(-4a2+2ab+7) 5(3a2b-ab2)-(ab2+3a2b) -x+(2x-2)-(3x+5) 3a2+a2-(2a2-2a)+(3a-a2) (2x2-2/1+3x)-4(x-x2+2/1) 3x2-[7x-(4x-3)-2x2] (-x2+5+4x)+(5x-4+2x
1.原式=-X+4+5+8-3-6X=-X-6X+4+5+8=17-7X
2.原式=6a-ab+7+8a-2ab-7=6a+8a-2ab-ab+7-7=14a-3ab
3.原式=5(6ab-2ab)-(2ab+6ab)=5×4ab-8ab=20ab-8ab=12ab
4.原式=-X+2X-2-3X-5=-X+2X-3X-2-5=-2X-7
5.原式=6a+2a-(4a-2a)+(3a-2a)=8a-2a+a=7a
6原式=(4-2+3X)-4(-X+2)=2+3X+4X-8=7X-6
7.原式=6-【7X-4X+3-4】=6-【3X-1】=6-3X+1=7-3X
8原式=-2X+5+4X+5X-4+4=-2X+4X+5X+5-4+4=7X+5
多简单啊
还用问啊、、