计算（X^5-12X^3+36X)/(X^3-6X)
问题描述：
计算（X^5-12X^3+36X)/(X^3-6X)
X^5代表X的5次
答
（X^5-12X^3+36X)/(X^3-6X)
=x(x^4-12x^2+36)/x(x^2-6)
=(x^4-12x^2+36)/(x^2-6)
=(x^2-6)^2/(x^2-6)
=x^2-6