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vanthanh2000
2 năm trước
Câu 1: Làm tính nhân: b) 3x'( 4x'- 2x² + 7x) d) (7xy + 5x) ( 2x°y - 5 xy + 4 xy') a) 5x( 3x2 +5x- 6) c) ( 3x+1) (5x' - 4) Câu 2: Làm tính chia: a) x^y° : x³y' c) (x + y) : (x + y) b) 27x'y'z* : 9x*y°z² d) (x - y) : (y - x)* Câu 3: Phân tích da thức thành nhân tử: a) 3x- 6х %3D0 b) x² – x Mọi người làm hết hộ em!
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