5x+10=-x-2
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
(2x^-5x+2/6x^+13x+6)*(6x^-5x-6/6x^-17x+10)*(12x^+8x-15/2x^-x
y=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10)的导数在x=1
设函数f(x)=(x-1)(x-2)(x-3)(x-4)(x-5)(x-6)(x-7)(x-8)(x-9)(x-10),
化简:x平方-x-2/x平方-x-6除以x平方+4x-5/x平方+2x-10
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
(x+2)(x-12)+(x+7)(x+8)+(x+5)(x-10),化简.
解方程.X+5*(X-2)+10*(14-X-X+2)=66
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
用因式分解法 3x(5x+1)=10x+2 6x²+3x-17/2=2x²+3x+½
1x()+2x()+3x()+4x()+5x()+6x()+7x()+8x()加9x()+10x()=1980