Mathematics, 24.07.2021 01:00 kkelley3141
M(x) = 3x^3–2x+4x^2–x+5 N(x) = 2x^2–x+3x^3–3x^2+9 a). Thu gọn các đa thức trên theo lũy thừa giảm dần của biến b). Tính M(x)+N(x) c). Tìm nghiệm của đa thức P(x)=M(x)+N(x)–6x^3–3x^2–2x
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M(x) = 3x^3–2x+4x^2–x+5 N(x) = 2x^2–x+3x^3–3x^2+9 a). Thu gọn các đa thức trên theo lũy thừa giảm dầ...
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