Va rog! Dau coroana
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Răspuns:
(x²+2x+2)( x²+2x+2)=
=( x⁴+2x³+2x²)+ ( 2x³+4x²+4x)+ ( 2x²+4x+4)=
= x⁴+4x³+8x²+8x+4