2x+(-6)=4x-8 (-2)x+10=3x+(-4)
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
lim(4x^3-2x^2+x)/(3x^2+2x)=?(x->0)
已知 X=4- 根号3 求 (X*X*X*X-6X*X*X-2X*X+18X+23) / (X*X-8X+15)的值
2x+(-6)=4x-8 (-2)x+10=3x+(-4)
A%(X-5)+B%(X+2)=(5X-4)%(X平方-3X-10)
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
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),
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
15x(3x-8)-4X(2X+3)=6X(4X-4)-4
六年级的方程,只有五道 x-128×3=0.06-2x x(2+x)=4x(12+3x) 7x+5