3/10×﹙200+x﹚-2/10×﹙300-x﹚=300×9/25 5/12x-x/4=1/3 2/3-8x=3-1/
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/06/25 11:45:08
3/10×﹙200+x﹚-2/10×﹙300-x﹚=300×9/25 5/12x-x/4=1/3 2/3-8x=3-1/2x 0.5x-0.7=6.5-1.3x
1/6﹙3x-6﹚=2/5x-3
3﹙x-7﹚+5﹙x-4﹚=15
4x-3﹙20-x﹚=-4
y-1/2=2-y+2/5
1/3﹙1-2x﹚=2/7﹙3x+1﹚
x+1/0.2-3x-1/0.4=1
1/6﹙3x-6﹚=2/5x-3
3﹙x-7﹚+5﹙x-4﹚=15
4x-3﹙20-x﹚=-4
y-1/2=2-y+2/5
1/3﹙1-2x﹚=2/7﹙3x+1﹚
x+1/0.2-3x-1/0.4=1
![3/10×﹙200+x﹚-2/10×﹙300-x﹚=300×9/25 5/12x-x/4=1/3 2/3-8x=3-1/](/uploads/image/z/16313665-49-5.jpg?t=3%2F10%C3%97%EF%B9%99200%2Bx%EF%B9%9A-2%2F10%C3%97%EF%B9%99300-x%EF%B9%9A%3D300%C3%979%2F25+5%2F12x-x%2F4%3D1%2F3+2%2F3-8x%3D3-1%2F)
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再问: 要步骤
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再问: 要步骤
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980
1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
(X+2)/(X+1)-(X+4)/(X+3)=(X+6)/(X+5)-(X+8)/(X+7)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3