(-4ab+2b)²除4b² 4ab(-2a²b+3b²c-1)

问题描述:

(-4ab+2b)²除4b² 4ab(-2a²b+3b²c-1)
分开的,4ab(-2a²b+3b²c-1)那开始是第二题

(-4ab+2b)²除4b²
=(2b)²(-4a+1)²/4b²
=(-4a+1)²
=16a²-8a+1
4ab(-2a²b+3b²c-1)
=-8a立方b²+12ab立方c-4ab