[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*
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[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*8=320 [6]x-2分之1x=2
[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*8=320 [6]x-2分之1x=2
[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*8=320 [6]x-2分之1x=2
![[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*](/uploads/image/z/13346412-60-2.jpg?t=%5B1%5D.x-16.4%3D80+%5B2%5D28-2x%3D13+%5B3%5D3x%2B2x%3D25+%5B4%5D32-2x%3D30+%5B5%5D+%5Bx%2B5%5D%2A)
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x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
2x(7-3x)+5x(2x+1)=x(4x-3)+32
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
[1].x-16.4=80 [2]28-2x=13 [3]3x+2x=25 [4]32-2x=30 [5] [x+5]*
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
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
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),
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
1x+2x+3x+4x+5x+6x+7x…+99x=100