因式分解: -8a²b³c+16a²bc³; a²-1+b²-2ab

问题描述:

因式分解: -8a²b³c+16a²bc³; a²-1+b²-2ab


-8a²b³c+16a²bc³
=-8a²bc(b²-2c²)
a²-1+b²-2ab
=(a²-2ab+b²)-1
=(a-b)²-1²
=(a-b-1)(a-b+1)