分解因式:1、x³-2x²y+xy²;2、(x+y)²-3(x+y);3、x²+8x+16;4、2x²-12x+18;5、9a-a³(全部要过程)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:31:16
![分解因式:1、x³-2x²y+xy²;2、(x+y)²-3(x+y);3、x²+8x+16;4、2x²-12x+18;5、9a-a³(全部要过程)](/uploads/image/z/1611925-61-5.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A1%E3%80%81x%26%23179%3B-2x%26%23178%3By%2Bxy%26%23178%3B%EF%BC%9B2%E3%80%81%EF%BC%88x%2By%EF%BC%89%26%23178%3B-3%EF%BC%88x%2By%EF%BC%89%EF%BC%9B3%E3%80%81x%26%23178%3B%2B8x%2B16%EF%BC%9B4%E3%80%812x%26%23178%3B-12x%2B18%EF%BC%9B5%E3%80%819a-a%26%23179%3B%EF%BC%88%E5%85%A8%E9%83%A8%E8%A6%81%E8%BF%87%E7%A8%8B%EF%BC%89)
分解因式:1、x³-2x²y+xy²;2、(x+y)²-3(x+y);3、x²+8x+16;4、2x²-12x+18;5、9a-a³(全部要过程)
分解因式:1、x³-2x²y+xy²;2、(x+y)²-3(x+y);3、x²+8x+16;
4、2x²-12x+18;5、9a-a³(全部要过程)
分解因式:1、x³-2x²y+xy²;2、(x+y)²-3(x+y);3、x²+8x+16;4、2x²-12x+18;5、9a-a³(全部要过程)
1、x³-2x²y+xy²;
=x(x²-2xy+y²)
=x(x-y)²
2、(x+y)²-3(x+y);
=(x+y){(x+y)-3]
=(x+y)(x+y-3)
3、x²+8x+16
=(x+4)²
4、2x²-12x+18;
=2(x²-6x+9)
=2(x-3)²
5、9a-a³
=-a(a²-9)
=-a(a+3)(a-3)