2/1x-28=50 4x+3/2=4/5 x-7/2x=28/15 3x-1.2=3.6 0.9x+1.3x=5.28
来源:学生作业帮 编辑:拍题作业网作业帮 分类:数学作业 时间:2024/04/29 23:21:41
2/1x-28=50 4x+3/2=4/5 x-7/2x=28/15 3x-1.2=3.6 0.9x+1.3x=5.28
2/1x-28=50
2/1x=50+28=78
x=78*2
x=156
4x+3/2=4/5
4x=4/5 -3/2
4x=-7/10
x=-7/10/4
x=-7/40
x-7/2x=28/15
-5/2x=28/15
x=-28/15 *2/5
x=56/75
3x-1.2=3.6
3x=3.6+1.2
3x=4.8
x=4.8/3
x=1.6
0.9x+1.3x=5.28
2.2x=5.28
x=5.28/2.2
x=2.4
2/1x=50+28=78
x=78*2
x=156
4x+3/2=4/5
4x=4/5 -3/2
4x=-7/10
x=-7/10/4
x=-7/40
x-7/2x=28/15
-5/2x=28/15
x=-28/15 *2/5
x=56/75
3x-1.2=3.6
3x=3.6+1.2
3x=4.8
x=4.8/3
x=1.6
0.9x+1.3x=5.28
2.2x=5.28
x=5.28/2.2
x=2.4
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
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 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
2x+3x+4x+5x+x+6x+7x=100
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
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
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
(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