3(X-5)^2=2(5-X)4X^2+(根号3+根号2)X+根号6=0

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 17:01:24

3(X-5)^2=2(5-X)4X^2+(根号3+根号2)X+根号6=0
3(X-5)^2=2(5-X)
4X^2+(根号3+根号2)X+根号6=0

3(X-5)^2=2(5-X)4X^2+(根号3+根号2)X+根号6=0
3(X-5)^2=2(5-X)
3(x-5)^2-2(5-x)=0
3(x-5)^2+2(x-5)=0
(x-5)[3(x-5)+2]=0
(x-5)(3x-13)=0
x=5或x=13/3
4X^2+(根号3+根号2)X+根号6=0
这个是不是有问题,是不是少打了个2啊

解九宫格题目(X为未知数)9 X 2 X 7 X 8 X XX X 4 X X 9 X 6 X1 3 X 5 X X X X 24 X X 8 5 X X 1 XX 8 9 4 X 1 6 7 XX 1 X X 3 6 X X 88 X X X X 2 X 3 6X 5 X 6 X X 9 X XX X 7 X 4 X 2 X 1 *-----------------------------------------------*| 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 || 解下列方程!就三道!解下列方程.1、x/x-2 - 1-x²/x²-5x = 2x/x-3(x/x-2 - 1-x²不是一起的!)2、5x/x²+x-6 - 5-2x/x²-x-12=7x-10/x²-6x+8(5x/x²+x-6 - 5-2x不是一起的!)3、x-4/x-5 + x-8/x-9=x-7/x- x+5/x+1-3x-3/x+5=8x+28/x^2+4X-5-2(x+5)/(x+1)-(3x-3)/(x+5)=(8x+28)/(x^2+4X-5)-2 x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? 计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1 解方程(x-2)X(x的平方-6x-9)=x(x-5)X(x-3) x(x^2-1)+2x^2 *(x+1)-3x*(2x-5)=x(3x^2-4x)-28 5x-3(2x+1)=6x-4(5-3x)求x 5x-3(2x+1)=6x-4(5-3x)求x 2(5x-4)-3(x+6)=5(x-1)-x 求x. (x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3) 麻烦解4道分式方程(20分)(x/2x-5)+(5/5-2x)=1(x+1/x*x-2x)-(1/x)=3/x-2(1-x/5-x)-(5-x/1-x)=8/x*x-6x+5(x+1/x-1)-(4/x*x-1)=1去掉括号,不管前面正负,都不变号~ 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 已知1/√(x)+√(x)=√5,求√(x/x2+x+1)+√(x/x2-x+1)的值定义域 x>0,两边平方,x+2+1/x=5,x+1/x=3,x^2-3x+1=0,x^2+x+1-4x=0,x^2+x+1=4x,x^2-x+1-2x=0.x^2-x+1=2x,√[x/(x^2+x+1)]-√[x/(x^2-x+1)]=√[x/(4x)]-√[x/2x]=√(1/4)-√(1/2) x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?