3/2-1/3x-1=5/6x-2 求x?

(x-1)(x-2)(x-3)(x-4)=(x+5)(x+6)(x+7)求X等于几? x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x 如果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, 已知x=2π+1求 |x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10| 已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10) *-----------------------------------------------*| 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 || 求一个数独答案X X X 9 X X X 8 2 X 6 3 X X 1 4 X 99 X 8 X X X X X XX X X 6 7 X 3 X XX 4 6 X 5 X 2 9 XX X 7 X 2 3 X X XX X X X X X 7 X 17 X 4 3 X X 6 2 X6 3 X X X 7 X X 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+2)(x-1)+(x+3)(x+1)=x·x-1 求x (5x-4)(2x+5)(3x-6)(2x-4)=(2x-4)(2x+5)·0.5 求x 1X?+2X?+3X?+4X?+5X?+6X?+7X?+8X?+9X?+10X?=1980求?是多少 5x-3（2x+1）=6x-4（5-3x)求x 5x-3（2x+1）=6x-4（5-3x)求x 若3x^2-x=1,求6x^3+7x-5x+2009 2（5x-4）-3(x+6)=5(x-1)-x 求x. 7x-6+5x+1=4x+3-2x求x是多少 /x-1/+/x-2/+/x-3/x-4/+/x-5/ +/x-6/求最小值 已知x=1/x,求x^2-6x+9/x-3/x+3/x^2+6x+9 求x^2-3x/x^2-6x+9*x^2-11x+30/x^2-5x-1