1.2[x-3]^2=[2x-5][2x+1] 2.2y^2+8y+8=0 3.-3/2x^2+x+2=0

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1.2[x-3]^2=[2x-5][2x+1]2.2y^2+8y+8=03.-3/2x^2+x+2=01.2[x-3]^2=[2x-5][2x+1]2.2y^2+8y+8=03.-3/2x^2+x+2

1.2[x-3]^2=[2x-5][2x+1] 2.2y^2+8y+8=0 3.-3/2x^2+x+2=0
1.2[x-3]^2=[2x-5][2x+1]
2.2y^2+8y+8=0
3.-3/2x^2+x+2=0

1.2[x-3]^2=[2x-5][2x+1] 2.2y^2+8y+8=0 3.-3/2x^2+x+2=0
1. 2[x-3]^2=[2x-5][2x+1]
2x^2-12x+18=4x^2+2x-10x-5
2x^2+4x-23=0
x^2+2x=23/2
[x+1]^2=25/2
x+1=+/-5/根2
x1=-1+5/根2
x2=-1-5/根2
2. 2y^2+8y+8=0
y^2+4y+4=0
[y+2]^2=0
y=-2
3. -3/2x^2+x+2=0
x^2-2/3x-4/3=0
[x-1/3]^2=4/3+1/9=13/9
x-1/3=+/-根13/3
x1=1/3+根13/3
x2=1/3-根13/3

1.2x(3-x)+^2=2-5x+2
2.2y=8y+8-2
3.-3+2-2x

1
2x^2-12x+18=4x^2-8x-5
2x^2+4x-23=0
x=-1±5√2/2
2
y^2+4y+4=0
(y+2)^2=0
y=-2
3
3x^2-2x-4=0
x=(2±2√13)/6
=(1±√13)/3

*-----------------------------------------------*| 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 || 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+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少? (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=? 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/x+1-x+3/x+2-x+4/x+3+x+5/x+4 5x/(x-2)-2=3(x-2)/x (x+3x+5x...+2009x)-(2x+4x+6x+...+2010x) 8x+3(x-2)=5x+(x-3) (X-5)(X+3)+(X-2)(X+4)=26 x(x+2)(x+3)(x+5)=7