3ax-3ay四次方用因式分解怎么解?
问题描述:
3ax-3ay四次方用因式分解怎么解?
答
3a乘以x-3a乘以y四次方 3a(x-y四次方)
答
3ax四次方-3ay四次方
=3a(x四次方-y四次方)
=3a(x平方-y平方)(x平方+y平方)
=3a(x-y)(x+y)(x平方+y平方)
答
3ax-3ay的4次方=3a(x-y的4次方)
直接提出公因式3a就行了!
答
3ax-3ay四次方
=3a(x-y4次方)