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baxapenudethuong
2 năm trước
Cho biểu thức C = x²-√x / x+√x+1 - 2x+√x / √x + 2(x-1) / √x-1 (xin lỗi vì mình k biết viết phân số) 1) Rút gọn C; 2) Tính giá trị của C khi x = 4 + 2√3; 3) Tính giá trị nhỏ nhất của C Cảm ơn mn rất nhiều ạ
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