-1-9a^2b^6+6ab^3 因式分解如题‘’
问题描述:
-1-9a^2b^6+6ab^3 因式分解
如题‘’
答
原式= -(1+9a^2b^6-6ab^3)
= -[(3ab^3)^2-2x3ab^3+1^2]
= -(3ab^3-1)^2