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Toán Lớp 8: Bài 3 Rút gọn biểu thức 1) (x²-y)²-(x+y)(x – y) = 2) 2x(x+5)-(x – 2)² = 3) (x+1)² +3(x+5)(x – 5) =

Home/ Toán Lớp 8: Bài 3 Rút gọn biểu thức 1) (x²-y)²-(x+y)(x – y) = 2) 2x(x+5)-(x – 2)² = 3) (x+1)² +3(x+5)(x – 5) =

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