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kekesoaica
2 năm trước
Cho đơn thức : A = $\frac{3}{8}$x$y^{5}$ . ( -4$x^{2}$$y^{2}$ ) a) Thu gọn, xác định hệ số và bậc của đơn thức A b) Tính giá trị của A, biết x = $\frac{1}{2}$ ; y = -1 Help me!! Lát đi học rùi
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