帮忙做几题因式分解,1.(x^2+5x+2)(x^2+5x+3)-12 2.(x-2)^3-(y-2)^3-(x-y)^3
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![帮忙做几题因式分解,1.(x^2+5x+2)(x^2+5x+3)-12 2.(x-2)^3-(y-2)^3-(x-y)^3](/uploads/image/z/994192-16-2.jpg?t=%E5%B8%AE%E5%BF%99%E5%81%9A%E5%87%A0%E9%A2%98%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3%2C1.%EF%BC%88x%5E2%2B5x%2B2%29%28x%5E2%2B5x%2B3%EF%BC%89-12+2.%EF%BC%88x-2%29%5E3-%28y-2%29%5E3-%28x-y%29%5E3)
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