因式分解:1、-a³b³+a²b²-ab 2、(2m-n)²-(3m+2n)²4、(x²-2x)²-11(x²-2x)+24 5、a²-3a-ab+3b 3、x²+8xy-33y² 5、a²-3a-ab+3b
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![因式分解:1、-a³b³+a²b²-ab 2、(2m-n)²-(3m+2n)²4、(x²-2x)²-11(x²-2x)+24 5、a²-3a-ab+3b 3、x²+8xy-33y² 5、a²-3a-ab+3b](/uploads/image/z/2586822-6-2.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%9A1%E3%80%81-a%26%23179%3Bb%26%23179%3B%2Ba%26%23178%3Bb%26%23178%3B-ab+2%E3%80%81%EF%BC%882m-n%EF%BC%89%26%23178%3B-%EF%BC%883m%2B2n%EF%BC%89%26%23178%3B4%E3%80%81%EF%BC%88x%26%23178%3B-2x%EF%BC%89%26%23178%3B-11%EF%BC%88x%26%23178%3B-2x%EF%BC%89%2B24+5%E3%80%81a%26%23178%3B-3a-ab%2B3b+3%E3%80%81x%26%23178%3B%2B8xy-33y%26%23178%3B+5%E3%80%81a%26%23178%3B-3a-ab%2B3b)
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因式分解:1、-a³b³+a²b²-ab 2、(2m-n)²-(3m+2n)²4、(x²-2x)²-11(x²-2x)+24 5、a²-3a-ab+3b 3、x²+8xy-33y² 5、a²-3a-ab+3b
因式分解:1、-a³b³+a²b²-ab 2、(2m-n)²-(3m+2n)²
4、(x²-2x)²-11(x²-2x)+24 5、a²-3a-ab+3b 3、x²+8xy-33y² 5、a²-3a-ab+3b
因式分解:1、-a³b³+a²b²-ab 2、(2m-n)²-(3m+2n)²4、(x²-2x)²-11(x²-2x)+24 5、a²-3a-ab+3b 3、x²+8xy-33y² 5、a²-3a-ab+3b
1、-a³b³+a²b²-ab
=-ab(a²b²-ab+1)
2、(2m-n)²-(3m+2n)²
=(2m-n+3m+2n)(2m-n-3m-2n)
=(5m+n)(-m-3n)
=-(5m+n)(m+3n)
4、(x²-2x)²-11(x²-2x)+24
=(x²-2x-3)(x²-2x-8)
=(x-3)(x+1)(x-4)(x+2)
5、a²-3a-ab+3b
=a(a-3)-b(a-3)
=(a-3)(a-b)
3、x²+8xy-33y²
=(x+11y)(x-3y)