Care ma ajuta si pe mine cu acest polinom pls?
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Răspuns:
(49/4-a^2/16)+a^2(a^2-4)-
(4a^2-1/4)(a^2/4-1)=
(49/4-a^2/16)+a^2(a^2-4)-
(4a^2-1/4)(a^2/4-1)=
49/4-a^2/16+a^4-4a^2-
(4a^4/4-4a^2-a^2/16+1/4)=
49/4-a^2/16+a^4-4a^2-a^4+4a^2+a^2/16-1/4=
facem reducerile și obtinem
49/4-1/4=(49-1)/4=48/4=12