【谜语一则】猜猜猜……

风花飘飘

带着安全套拜佛。
答：成语一。

今有方程X^5-5*X-2=0

X^5-5*X-2分解因式：
=(X^3+R*X^2+S*X-(2/(-4)^(1/5)))*(X^2-R*X+(-4)^(1/5))

=(X^3+R*X^2+(((4^(1/5)*R^2+16^(1/5))*X^2+(16^(1/5)*R-2)*X+2*R-5*4^(1/5))/(4^(1/5)*X^2-4^(1/5)*R*X-16^(1/5)))*X-(2/(-4)^(1/5)))*(X^2-R*X+(-4)^(1/5))


或者：
= (X^3+R*X^2+(((4^(1/5)*R^2+16^(1/5))*X^2+(16^(1/5)*R-2)*X+2*R-5*4^(1/5))/(4^(1/5)*X^2-4^(1/5)*R*X-16^(1/5)))*X+(2/(4)^(1/5)))*(X^2-R*X-(4)^(1/5))