5(X-7)=26.5 4(X+8.2)=40.8 (X-0.52)÷4=1.12 1.5×(X-8)=60
5(X-7)=26.5 4(X+8.2)=40.8 (X-0.52)÷4=1.12 1.5×(X-8)=60
(1) x-3/x-2 - x-5/x-4=x-7/x-6 - x-9/x-8
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
解方程:(x-8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
x-4/x-5 - x-5/x-6=x-7/x-8 - x-8/x-9求x=?
30X-2X=84 5.8X-X=60 6.6X-5X=8 4X-X=24 1.5X-X=1
x-x/5=2.4 (求未知数x) 12÷5%x=8 4x+x=12.5
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),
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^5+x^6+x^7+x^8的值
求方程解x-5/x-4+x-9/x-8=x-8/x-7+x-6/x-5
x-4/x-5-x-7/-x-8=x-5/x-6-x-8/x-9