因式分解(1)-4x²y-12xy+4x (2)-ab(y-x)+a²b(x-y)还有~先化简,再求值(1)(a+1)(a²-2a+1)-a(a²-a+2),其中|a|-3=0(2)(a+b)(a-b)+(a+b)²-a(2a+b),其中a=七分之二,b=负三又二分
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![因式分解(1)-4x²y-12xy+4x (2)-ab(y-x)+a²b(x-y)还有~先化简,再求值(1)(a+1)(a²-2a+1)-a(a²-a+2),其中|a|-3=0(2)(a+b)(a-b)+(a+b)²-a(2a+b),其中a=七分之二,b=负三又二分](/uploads/image/z/1742411-11-1.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%EF%BC%881%EF%BC%89-4x%26sup2%3By-12xy%2B4x+%EF%BC%882%EF%BC%89-ab%EF%BC%88y-x%EF%BC%89%2Ba%26%23178%3Bb%EF%BC%88x-y%EF%BC%89%E8%BF%98%E6%9C%89%7E%E5%85%88%E5%8C%96%E7%AE%80%EF%BC%8C%E5%86%8D%E6%B1%82%E5%80%BC%EF%BC%881%EF%BC%89%28a%2B1%29%28a%26%23178%3B-2a%2B1%EF%BC%89-a%EF%BC%88a%26%23178%3B-a%2B2%EF%BC%89%EF%BC%8C%E5%85%B6%E4%B8%AD%7Ca%7C-3%3D0%EF%BC%882%EF%BC%89%EF%BC%88a%2Bb%EF%BC%89%28a-b%29%2B%28a%2Bb%29%26%23178%3B-a%EF%BC%882a%2Bb%29%2C%E5%85%B6%E4%B8%ADa%3D%E4%B8%83%E5%88%86%E4%B9%8B%E4%BA%8C%EF%BC%8Cb%3D%E8%B4%9F%E4%B8%89%E5%8F%88%E4%BA%8C%E5%88%86)
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