[2000/(x-5)]-1800/x怎么算
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[2000/(x-5)]-1800/x怎么算[2000/(x-5)]-1800/x怎么算[2000/(x-5)]-1800/x怎么算(2000X-1800X+1800×5)／X(x-5)=(200X+
[2000/(x-5)]-1800/x怎么算
[2000/(x-5)]-1800/x怎么算
[2000/(x-5)]-1800/x怎么算
(2000X-1800X+1800×5)／X(x-5) =(200X+9000)／X（X-5）
2000/x-5-1800/x＝0.25
[2000/(x-5)]-1800/x怎么算
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
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|x-1|+|x-2|+|x-3|+|x-4|+|x-5|+|x-6|+|x-7|+|x-8|+|x-9|+|x-10|的最小值 这类题该怎入手
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
已知x*x-5x-2000=0,求((x-2)(x-2)(x-2)-(x-1)(x-1)+1)/x-2的值
解方程x-3x+5x-7x……-1999x=2000
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-5)(x-2)
12^x+5^x
x^5-x因式分解
x^5-x 因式分解
x^5+x-1
x+5/x-8
|x-5|+|x-3|
3x-|x+5|
(x+3)(x-5)