3%X+1/2X=64
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
方程(x+1)(x+2)(x+3)(x+4)(x+5)(x+6)(x+7)(x^2+8x+9)+64=0
x^4+x^3+x^2+x+1=0,x^2006+x^2005+x^2004+x^2003+x^2002
f(x-1)=x^2-2x+3(x
(x+3)×(x+2)×(x+1)×x=3024
f(x)=(x-1)(x-2).(x-3)求导
(x+2)(x-3)(x-6)(x-1)=0
函数,y=3x/(x^2+x+1) ,x
函数y=3x/(x^2+x+1) (x
2x-(91-x)=1/3(91-x)-x
1.2(x-2)-3(4x-1)=9(1-x) 2.11x+64-2x=100-9x 3.15-(8-5x)=7x+(4