2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解

2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解

2a(b-c)²-3b+3c,x(a-x)(a-y)-y(x-a)(y-a)的各式因式分解
2a(b-c)²-3b+3c
=2a(b-c)²-3(b－c)
=(b－c)[2a(b-c)－3]
=(b－c)(2ab－2ac－3)
x(a-x)(a-y)-y(x-a)(y-a)
=x(a-x)(a-y)－y(a-x)(a-y)
=(x－y)(a-x)(a-y)