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Toán Lớp 8: C3: Thu gọn biểu thức sau: (a+b-c)+(b+c-a)+(a+c-b) (2a+b+3c)-(a-b+c) C4: Tìm x (x+3)^2-(x-4)(x+8)=1

Home/ Toán Lớp 8: C3: Thu gọn biểu thức sau: (a+b-c)+(b+c-a)+(a+c-b) (2a+b+3c)-(a-b+c) C4: Tìm x (x+3)^2-(x-4)(x+8)=1

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