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20x – 5y e) 4x2y – 8xy2 + 10x2y2 b) 5x(x – 1) – 3x(x – 1) g) 20x2y – 12x3 c) x(x + y) – 6x – 6y h) 8x4 + 12x2y4 – 16x3y4 d) 6x3 – 9x2 k) 4xy2 + 8xyz Nguồn bài viết: https://toancap2.net/dai-so-8-chuyen-de-3-phan-tich-da-thuc-thanh-nhan-tu/
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