解决下面的分解因式~~帮帮忙
1.-2x⑶+6x⑵
2.5xy-x⑵y+xy⑵
3.-6x⑶y⑷-8x⑵y⑸+16xy⑹
4.2a(a-b)+4a(2a+3b)
5.a(a+b)(a-b)-a(a+b)⑵
6.x(x-y)⑶+y(y-x)⑶
参考答案:6.(x-y)(3) x(x-y)(3)-y(x-y)(3)
5.-2ab(a+b) a[(a+b)(a-b)-(a+b)(2)]
=a[(a+b)(a-b-a-b)]
=a(a+b)(-2b)
4.10a(a-b) 2a[(a-b)+2(2a+3b)]
=2a(a-b+4a+6b)
=2a(5a-5b)
3.2xy(4)(8y-4xy-3x(2))
2.xy(5-x+y)
1.2x(2)(3-x)
好累好累~~~ 终于写完了 但是不一定对哦 最好自己再算一遍哦 检查检查