ab(a+b)²-(a+b)²+1ab(a+b)²-(a+b)²+1因式分解
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![ab(a+b)²-(a+b)²+1ab(a+b)²-(a+b)²+1因式分解](/uploads/image/z/1835696-56-6.jpg?t=ab%28a%2Bb%29%26%23178%3B-%28a%2Bb%29%26%23178%3B%2B1ab%28a%2Bb%29%26%23178%3B-%28a%2Bb%29%26%23178%3B%2B1%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3)
ab(a+b)²-(a+b)²+1ab(a+b)²-(a+b)²+1因式分解
ab(a+b)²-(a+b)²+1
ab(a+b)²-(a+b)²+1
因式分解
ab(a+b)²-(a+b)²+1ab(a+b)²-(a+b)²+1因式分解
(a+b)05=1,(a-b)05=7,
a²+2ab+b²=1,a²-2ab+b²=7
两式相减即可
4ab=-6
ab=-3/2