几道数学因式分解 a八次-2a四次+1 (2)-2/3ax平方+4ax-6a (3) -6(2a-b)平方-4(2a-b)(4) 4m²(x+y)²-12mn(x+y)(x-y)+9n²(x-y)²

问题描述:

几道数学因式分解 a八次-2a四次+1 (2)-2/3ax平方+4ax-6a (3) -6(2a-b)平方-4(2a-b)
(4) 4m²(x+y)²-12mn(x+y)(x-y)+9n²(x-y)²