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lequocbao29072001
2 năm trước
Cho hai đa thức : P(x) = $x^{3}$ - 2x - $x^{2}$ - 3x - 2 Q(x) = 4$x^{3}$ - $x^{2}$ - 3x - 4x - 3$x^{3}$ - 1 a, Thu gọn và sắp xếp các đa thức theo luỹ thừa giảm dần của biến b, Tính Q(x) - P(x) c, Tìm nghiệm của đa thức R(x) biết R(x) - Q(x) = P(x)
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