97+x=0.6*(165+x)
(X+X)+(X-X)+(X*X)+(X/X)=100
已知x^4+x^3+x^3+x^2+x^1+1=0,求x^100+x^99+x^98+x^97+x^96的值
x^3+x^2+x+1=0,则x^97+x^98+x^99+.x^103=
x+x=x+15
已知x^4+x^3+x^2+x^2+1=0,求x^100+x^99+x^98+x^97+x^96的值
x^4+X^3+X^2+X^1+1=0求x^100+X^99+X^98+X^97+X^96的值
用递归法求y=x-(x*x*x/3!)+(x*x*x*x*x/5!)-(x*x*x*x*x*x*x/7!)+.
0.3X+0.6*(20-X)=9,求X
若x³+x²+x+1=0,则y=x^97+x^98+...+x^103=?
0.6x+0.7x=2.
1.5X+7.4=0.6x+9.2
x-0.6x=3.6解方程