(3/5 x+40):(x+50)=2:3解方程
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 10:11:35
(3/5x+40):(x+50)=2:3解方程(3/5x+40):(x+50)=2:3解方程(3/5x+40):(x+50)=2:3解方程原式可化简为3×(3/5x+40)=2×(x+50)且x≠-5
(3/5 x+40):(x+50)=2:3解方程
(3/5 x+40):(x+50)=2:3
解方程
(3/5 x+40):(x+50)=2:3解方程
原式可化简为3×(3/5 x+40)=2×(x+50)且x≠-50,
即0.2x=20,x=100 ,满足x≠-50,即解是x=100.
。。。
求解未知数,原式可化为:(3/5 x+40)*3=(x+50)*2
然后去括号 9/5x+120=2x+100
得到 1/5x=20
最后 x=100
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
*-----------------------------------------------*| 6 4 X | 8 X X | X X 5 || X X X | X X X | X 7 8 || X X X | X X X | X X X ||---------------+---------------+--------------- || X X X | X X X | 5 1 X || X X X | X 6 X | X X X || 8 X X | 3 5 X | 2 X X ||
x+3x+x-2+x+x+50%x=188 求x
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
x^5-2x^3+x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
=(x^2-5x)^2+10(x^2-5x)+24 =x^4-10x^3+25x^2+10x^2-50x+24 这是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24
=(x^2-5x+4)(x^2-5x+6) =(x^2-5x)^2+10(x^2-5x)+24 是怎么转化的(X-1)(X-2)(X-3)(X-4) =(X-1)(X-4) (X-2)(X-3)=(x^2-5x+4)(x^2-5x+6)=(x^2-5x)^2+10(x^2-5x)+24=x^4-10x^3+25x^2+10x^2-50x+24=x^4-10x^3+35x^2-50x+24不好意思我弄错了,是=(x^2-5
当2x=30x 3x=40x 4x=50x时 那么
(x+1)+(x+2)+(X+3).+(x+50)=1325
5x/(x-2)-2=3(x-2)/x