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phuongthuynyna
2 năm trước
Cho các đa thức A(x) = -1 + $5x^{6}$ - $6x^{2}$ - 5 - $9x^{6}$ + $4x^{4}$ - $3x^{2}$ B(x) = 2 - $5x^{2}$ + $3x^{4}$ - $4x^{2}$ + 3x + $x^{4}$ - $4x^{6}$ - 7x a) Thu gọn và sắp xếp các số hạng theo thứ tự giảm dần của biến b) Tìm bậc và các hệ số của mỗi đa thức
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