因式分解 (27 14:1:58).分解因式:1.x2+x-(a2-a) 2.x5+x4+x3+x2+x+1 3.3x2+5xy-2y2+x+9y-44.x2(x+1)-y(x
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![因式分解 (27 14:1:58).分解因式:1.x2+x-(a2-a) 2.x5+x4+x3+x2+x+1 3.3x2+5xy-2y2+x+9y-44.x2(x+1)-y(x](/uploads/image/z/8023-31-3.jpg?t=%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3+%2827+14%3A1%3A58%29.%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A1.x2%2Bx-%28a2-a%29%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B+2.x5%2Bx4%2Bx3%2Bx2%2Bx%2B1%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B%26%23160%3B+3.3x2%2B5xy-2y2%2Bx%2B9y-44.x2%28x%2B1%29-y%28x)
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