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Dothanhtrung207
2 năm trước
B1: cho đa thức F(x)=x^3+4x^2-5x-3; g(x)= 2x^3+x^2+x+2 H(x)= x^3-3x^2-3x+1 Tính: a, f(x)+h(x)-g(x) b, f(x)-g(x)+h(x) Bài2: tìm x, biết (4x^3-5x^2+x-1)+(3-5x+5x^2-4x^3)=2
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