1/3:x=0.2:6
化简(2x-5)(3x+2)-6(x+1)(x-2),其中x=0.2
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
已知3x*x-x=1,求6x*x*x+7x*x-5x+2000
(1)3x(x+0.2)=4x(x-1.1)
(x+2)(x-3)(x-6)(x-1)=0
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
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
已知1+x+x^2+x^3=0,求x+x^2+x^3+x^4+x^+x^6+x^7+x^8的值
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),
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)
解方程:x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6
x-1\x-2+x-6\x-7=x-2\x-3+x-5\x-6 分式方程