将x^2+7xy+3y^2+9x+2y-5因式分解(过程)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/22 19:19:18
将x^2+7xy+3y^2+9x+2y-5因式分解(过程)
![将x^2+7xy+3y^2+9x+2y-5因式分解(过程)](/uploads/image/z/19928033-17-3.jpg?t=%E5%B0%86x%5E2%2B7xy%2B3y%5E2%2B9x%2B2y-5%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%28%E8%BF%87%E7%A8%8B%29)
你是不是抄写错了啊,是不是少了个2啊
2x^2+7xy+3y^2+9x+2y-5
=(2x+y)(x+3y)+9x+2y-5
=(2x+y-1)(x+3y+5)
2x^2+7xy+3y^2+9x+2y-5
=(2x+y)(x+3y)+9x+2y-5
=(2x+y-1)(x+3y+5)