(x+2)*1 +10x +5(12-2x)=66 怎么算?
(x+5)^2=10+(x+5)x怎么算
1x+2x+3x+4x+5x+6x+7x+8x+9x+10x+11x+12x+13x+14x+15x=550
(x+12)(x-2)+(x+7)(x+8)-(x+5)(x-10),其中x=2
7x-3(2/3x+1/5x)-(x+2/5x)+2x,=5x怎么求出
2X=5X怎么算?
根号下(5x^2+10x+1)+x^2+2x=7怎么解
5x-4/x-2=4x 10/3x-6-1 怎么解
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
2x/(x^2+x)-1/x=5/(x+1)怎么做?
-10x的平方+4x+1=5x+2x平方-2.怎么得12x的平方+x-3=0把步骤写一下
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),