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Let a x^7+b x^6+c x^5+dx^4+e x^3+fx^2+gx...

Let `a x^7+b x^6+c x^5+dx^4+e x^3+fx^2+gx+h=|[x+1,x^2+2,x^2+x],[x^2+x,x+1,x^2+2],[x^2+2,x^2+x,x+1]|` then
A. g = 3 and h = -5
B. g = -3 and h = -5
C. g = -3 and h= -9
D. None of these

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