-4/9x²+4/3xy+y²

来源:学生作业学帮网 编辑:学帮网 时间:2024/05/20 04:26:51

-4/9x²+4/3xy+y²

-4/9x²+4/3xy+y²
=-4/9(x²-3xy)+y²
=-4/9(x-3y/2)²+2y²
=2y²-4/9(x-3y/2)²
=2y²-(2x/3-y)²
=(√2y-2x/3+y)(√2y+2x/3-y)
祝你开心