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catlinh2403
2 năm trước
cho các đa thức f(x)=2x^4-x^3+x-3+5x^5 g(x)=-x^3+5x^2+4x+2+3x^5 h(x)=x^2+x+1+2x^3+3x^4 hãy tính f(x)+g(x)+h(x) f(x)-g(x)-h(x)
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