学帮网分解因式a²-3a-ab+3b
来源：学生作业学帮网 编辑：学帮网 时间：2024/05/16 04:55:29
分解因式a²-3a-ab+3b
原式=a(a-3)-b(a-3)
=(a-3)(a-b)
a²-3a-ab+3b
=a(a-3)-b(a-3)
=(a-3)(a-b)
a²-3a-ab+3b
=a²-ab+3b-3a
=a(a-b)-3(a-b)
=(a-3)(a-b)
a²-3a-ab+3b
=a²-ab+3b-3a
=a(a-b)-3(a-b)
=(a-3)(a-b)
a^2-3a-ab+3b
=a(a-3)-b(a-3)
=(a-b)(a-3)