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Ajutorrr!! Va roggg!!!(x²-x+1)²=x(la puterea 4) - 2x³+3x²-2x+1

Răspuns :

(x²-x+1)*(x²-x+1)=x⁴-x³+x²-x³+x²-x+x²-x+1=x⁴=2x³+3x²-2x+1