(x的5次方-12x的3次方+36x)/(x的3次方-6x)
问题描述:
(x的5次方-12x的3次方+36x)/(x的3次方-6x)
计算
答
(x的5次方-12x的3次方+36x)/(x的3次方-6x) =x(x^4-12x^2+36)/[x(x^2-6)] =(x^2-6)^2/(x^2-6) =x^2-6