(-x+5)(x-3)(x+6)怎么算
(-x+5)(x-3)(x+6)怎么算
(-x+2x²+5)+(4x²-3-6x)怎么算?
(X-3)/(X^2-4)*(X^2-4X+4)/(x^2-x-6)-1/(x+2)怎么算?
3x≤5x怎么算
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7x(x-6)+3x=4x(2x+5)怎么解这个方程
3X—8=5x+6 怎么算
x/x-3-5x/x^2-x-6计算
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
x^2+5x+6分之x^2+5x+5减去x^2+8x+15分之x^2+8x+14 怎么算
(x+5)²-(x-2)(x-3) =x²+10x+25-(x²-5x+6) *5x怎么来