(X-5)(X-6)=X-5
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![(X-5)(X-6)=X-5](/uploads/image/z/2713096-64-6.jpg?t=%28X-5%29%28X-6%29%3DX-5)
(X-5)(X-6)=X-5
(X-5)(X-6)=X-5
(X-5)(X-6)=X-5
(X-5)(X-6)=X-5
则(x-5)(x-6)-(x-5)=0
则(x-5)(x-6-1)=0
则(x-5)(x-7)=0
所以x=5或x=7
(X-5)(X-6)=X-5
(X-5)(X-6)-1x(X-5)=0
(x-5)(x-6-1)=0
(x-5)(x-7)=0
x1=5 x2=7
*-----------------------------------------------*| 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+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
2x+3x+4x+5x+x+6x+7x=100
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
(x+7/x+6) +(x+9/x+8)=9x=(x+10/x+9) +(x+6/x+5)
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
(X-5)(X-6)=X-5
3x+5x-6x=?
x^-6x+5=x+4
(x+8)(x+6)(x+7)+(x+5)(x+6)(x+7)=(x+5)(x+8)(x+7)+(x+5)(x+8)(x+6)
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
X(X+5)=6(X+X+5)解一下
x+5/7x=6 x x等于多少
5x/x(1+x)=6/1+x
x平方+5x+6=(x+3)(x+几)