分解因式 (2)-2xy²+4x²y+6xy (2)3a(a-b)-3b(b-a) (4)(x-y)³-3y(y-x)²(7)49(a-b)²-16(a+b)²(8)(x²+y²)²-4x²y²
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![分解因式 (2)-2xy²+4x²y+6xy (2)3a(a-b)-3b(b-a) (4)(x-y)³-3y(y-x)²(7)49(a-b)²-16(a+b)²(8)(x²+y²)²-4x²y²](/uploads/image/z/6115176-0-6.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F+%EF%BC%882%EF%BC%89-2xy%26%23178%3B%2B4x%26%23178%3By%2B6xy+%EF%BC%882%EF%BC%893a%EF%BC%88a-b%EF%BC%89-3b%EF%BC%88b-a%EF%BC%89+%EF%BC%884%EF%BC%89%EF%BC%88x-y%EF%BC%89%26%23179%3B-3y%EF%BC%88y-x%EF%BC%89%26%23178%3B%EF%BC%887%EF%BC%8949%EF%BC%88a-b%EF%BC%89%26%23178%3B-16%EF%BC%88a%2Bb%EF%BC%89%26%23178%3B%EF%BC%888%EF%BC%89%EF%BC%88x%26%23178%3B%2By%26%23178%3B%EF%BC%89%26%23178%3B-4x%26%23178%3By%26%23178%3B)
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分解因式 (2)-2xy²+4x²y+6xy (2)3a(a-b)-3b(b-a) (4)(x-y)³-3y(y-x)²(7)49(a-b)²-16(a+b)²(8)(x²+y²)²-4x²y²
分解因式 (2)-2xy²+4x²y+6xy (2)3a(a-b)-3b(b-a) (4)(x-y)³-3y(y-x)²
(7)49(a-b)²-16(a+b)²(8)(x²+y²)²-4x²y²
分解因式 (2)-2xy²+4x²y+6xy (2)3a(a-b)-3b(b-a) (4)(x-y)³-3y(y-x)²(7)49(a-b)²-16(a+b)²(8)(x²+y²)²-4x²y²
(2).-2xy(y-2x-3) (2).(a-b)(3a+3b) (4).(x-y)的平方(x-4y) (7).[7(a-b)][4(a+b)]
(8).(x+y)的平方(x-y)的平方