因式分解:2(1-x)的平方+6a(x-1)的三次方
问题描述:
因式分解:2(1-x)的平方+6a(x-1)的三次方
答
2(1-x)²+6a(x-1)³
=2(1-x)²+2(1-x)²(3a(x-1))
=2(1-x)²(3ax-3a+1)