2x²-3x+1=6x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程:x(6-x)-2x(x+1)-(x^3-3x^4)/x²=4
(x+1-1/1-x)÷(x-x²/x-1) (x-4/x-x-6+ x+2/x-3)÷x+1/x-3
2X²-X=6,4X²-3X-1=X-2,3X(X-3)=2(X-1)(X+1),
代数式6x+2x²-3x+x²+1,其中x=-5
6x+(2x²-3x)-(x²-1)
(x+2)(x-3)(x-6)(x-1)=0
x²+3x+9/(x²-27)+6x/(9x-x²)-(x-1)/(6+2x)
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),