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huynhdanglong080805
2 năm trước
Chó biểu thức A = 2x căn x + 2 căn x - 3x-3/2 căn x - 3 và B= 2x bình - 2x/x căn x - 6 căn x a. Rút gọn bieeu thức A và B b. Tính giá trị của A khi x= căn 4 + căn 7 c. Tìm x để B < - x +3
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